Laytime

Laytime

Laytime is one of the most important concepts in voyage chartering because it determines how much time the Charterer is allowed to use for loading and discharging cargo before financial consequences arise. In practical shipping, a ship earns money by moving cargo, not by waiting at a port. Every hour spent at anchorage, alongside a berth, under cargo operations, or delayed by port circumstances has commercial value. For that reason, Shipowners, Charterers, Shipbrokers, Ship Agents, Port Agents, operators, and maritime lawyers pay close attention to how laytime is triggered, counted, interrupted, exhausted, and recorded.

Laytime disputes usually arise from two basic questions. First, when does laytime begin? Second, which periods count and which periods are excluded? These questions sound simple, but they can become complex because the answer depends on the wording of the Charterparty, the validity of the NOR (Notice of Readiness), the ship’s physical and legal readiness, port conditions, weather, holidays, strikes, berth availability, cargo-handling rates, local working customs, and the accuracy of the Statement of Facts (SOF).

In voyage chartering, the Shipowner undertakes to carry cargo from one place to another for freight. The Charterer is usually given an agreed amount of time to load and discharge the cargo. If cargo operations take longer than the allowed time, the Charterer normally pays Demurrage. If cargo operations finish sooner than the allowed time and the Charterparty provides for it, the Shipowner may pay Despatch Money to the Charterer. These payments can be substantial, particularly in dry bulk trades where daily demurrage rates may represent a large part of voyage economics.

Laytime in Voyage Chartering

Laytime is the period contractually allowed to the Charterer for loading and discharging operations. It is not merely the actual time used for cargo work. It is a legal and commercial allowance created by the Charterparty. Once the ship is an arrived ship, is ready in the required sense, and a valid NOR (Notice of Readiness) has been tendered in accordance with the Charterparty, laytime begins to count after any agreed notice period has expired.

The time allowed may be expressed as a number of days, a number of hours, a loading or discharging rate, a rate per hatch, a total period for all purposes, or a separate allowance for loading and discharging. For example, a Charterparty may allow “five weather working days” for loading and “four weather working days” for discharge. Another Charterparty may provide “10,000 metric tons per weather working day” or “300 metric tons per workable hatch per day.” Each formula produces a different calculation.

Laytime is central because it allocates port delay risk. Shipowners want the ship to complete cargo operations quickly and return to trading. Charterers want enough time to load or discharge without incurring demurrage. The agreed laytime therefore reflects negotiation between freight level, port efficiency, cargo type, season, terminal equipment, weather risk, berth congestion, and bargaining power.

When Laytime Begins to Count

When Laytime Begins to Count depends mainly on the valid tender of the NOR (Notice of Readiness). The Ship Master has primary responsibility for tendering NOR (Notice of Readiness), but the Port Agent often plays a vital role, especially where the ship is at anchorage, the Ship Master cannot deliver the notice personally, or the local practice requires communication through the agent.

A late or missing NOR (Notice of Readiness) can cause serious financial loss. If the ship is ready but NOR (Notice of Readiness) is not tendered, laytime may not start. The ship may then wait for hours or days without the time counting against the Charterer. Conversely, tendering NOR (Notice of Readiness) too early usually does less harm, provided further notices are tendered when the ship later satisfies the required conditions. A premature NOR (Notice of Readiness) may be invalid, but a later valid notice can still start the process.

For practical protection, many Shipowners and Port Agents tender NOR (Notice of Readiness) as soon as there is a reasonable basis to do so, and then tender additional notices whenever the ship’s position changes or additional conditions are satisfied. A later notice may state: “NOR (Notice of Readiness) is given without prejudice to earlier NOR (Notice of Readiness) tendered on …". This protects the Shipowner’s position while avoiding an argument that only one attempt was made.

Before laytime can begin, three matters usually need to be considered: the ship must be an arrived ship, the ship must be ready, and NOR (Notice of Readiness) must be validly tendered according to the Charterparty.

Ship Loading and Discharging Rates

Ship Loading and Discharging Rates are normally negotiated at the fixture stage. These rates decide the amount of laytime available. A loading rate may be expressed in metric tons per day, metric tons per weather working day, metric tons per hatch per day, or by a fixed number of days. A discharging rate may be stated separately or combined with loading time as one total period.

For example, if a Charterparty provides for loading at 10,000 metric tons per day and the cargo quantity is 50,000 metric tons, the loading laytime is five days, subject to the exact wording of the clause and any exceptions. If the Charterparty provides for “total 10 days all purposes,” the same pool of time may be used for both loading and discharging. If loading uses only four days, six days remain for discharge. If loading uses seven days, only three days remain unless the Charterparty provides otherwise.

The rate agreed should reflect port reality. A highly mechanized bulk terminal may load or discharge continuously. A less developed port may depend on manual labour, limited grabs, small barges, shore cranes, or working restrictions. If the agreed rate is too optimistic, the Charterer may face demurrage. If the agreed rate is too slow, the Shipowner may effectively pay for idle ship time through despatch or reduced freight economics.

SHINC, SHEX, SSHINC, and SSHEX

Laytime clauses must identify which days count. In ports operating continuously, parties may agree SHINC (Sundays and Holidays Included). This means Sundays and holidays count as laytime. In practice, SHINC is often treated as a form of running days, although the exact result still depends on the full wording of the Charterparty.

Where port labour does not normally work on Sundays or public holidays, the parties may agree SHEX (Sundays and Holidays Excluded). Under SHEX wording, Sundays and holidays are excluded from laytime unless the Charterparty states that time used during excluded periods counts. This can be important in ports where weekend work is possible only if overtime is paid.

Because many ports also restrict Saturday work, SHINC and SHEX are often expanded into SSHINC (Saturdays, Sundays, and Holidays Included) and SSHEX (Saturdays, Sundays, and Holidays Excluded). These abbreviations should not be used casually. A small change in wording can produce a large financial difference in the laytime calculation.

Where work is performed during an excluded period, the Charterparty must state whether that time counts. The clause may say that only time actually used is to count as laytime. The words actually used protect the Charterer from having an entire excluded day count when only a short shift was worked. Other forms provide that “if any time is used that would otherwise be excepted, then it only counts as halftime”. This can create a very different result and should be checked carefully.

Overtime Clause and Laytime Counting

An Overtime Clause usually states who pays for work outside normal hours. Overtime itself does not automatically decide whether laytime counts. The financial responsibility for overtime and the legal counting of laytime are separate questions. One party may pay for overtime, but the Charterparty still decides whether the time counts as laytime, half laytime, or not at all.

In many ports, loading or discharge can continue during evenings, weekends, or holidays if someone pays overtime. Shipowners may want the work to proceed because every hour saved improves ship utilization. Charterers may agree if overtime cost is cheaper than demurrage exposure or if the cargo sale contract requires quick completion. The Statement of Facts (SOF) should clearly record when overtime was used, who ordered it, and whether cargo operations were actually performed.

During chartering negotiations, Shipowners and Charterers should pay close attention to the relationship between overtime, excluded days, time used, SHEX/SHINC wording, and despatch. These details affect not only the demurrage calculation but also the voyage estimate. A clause that seems minor at fixture stage may later decide a large claim.

Laydays and Laytime

The words laydays and lay-time should not be confused. Laydays normally refer to the agreed period during which the ship must present for loading. The laydays/cancelling spread defines when the Charterer is required to accept the ship and when the Charterer may have a right to cancel if the ship is late. Laytime, by contrast, is the time allowed for loading and discharging operations after the ship has arrived, is ready, and valid NOR (Notice of Readiness) has been tendered.

This distinction is important because a ship may arrive within the laydays, tender NOR (Notice of Readiness), and then begin counting laytime after the notice period. Alternatively, a ship may arrive before laydays and be unable to start laytime unless the Charterparty allows early tender or the Charterer accepts the ship. A misunderstanding between laydays and laytime can distort the entire port calculation.

When Lay-Time Starts to Count (When Lay-Time Clock Starts Ticking)

When Lay-Time Starts to Count (When Lay-Time Clock Starts Ticking) is governed by the Charterparty. Most Charterparties require NOR (Notice of Readiness) to be tendered, followed by a notice period before laytime starts. The notice period allows Shippers or Receivers to prepare labour, cargo, equipment, documents, berth arrangements, and other facilities.

Some forms require NOR (Notice of Readiness) to be tendered during office hours. Others allow tender by email, telex, fax, or other written communication. Some clauses provide that laytime begins immediately upon tender. Others provide that laytime begins six hours, twelve hours, or twenty-four hours after NOR (Notice of Readiness) is tendered. Older forms may contain longer margins reflecting historical communication delays that no longer exist in modern practice.

Charterers may seek a long notice period because it gives free time before the laytime clock starts. Shipowners may seek a shorter notice period because they want the ship’s waiting time to count. The final wording should be read with the working days clause, office-hours restriction, holidays, and any WIBON/WIFPON/WICCON wording.

NOR (Notice of Readiness)

NOR (Notice of Readiness) is the formal notice by which the Ship Master or authorized representative informs the Charterer, Shipper, Receiver, or agent that the ship has arrived at the contractual place and is ready to load or discharge. Without a valid NOR (Notice of Readiness), laytime may not start, even if the ship is physically waiting and cargo operations could have begun.

Two essential factors must be satisfied before a valid NOR (Notice of Readiness) can normally be tendered:

1. Arrived Ship
2. Ship's Readiness

a- Arrived Ship

An Arrived Ship is a ship that has reached the place where the Charterparty allows NOR (Notice of Readiness) to be tendered. In a berth charter, this may mean the ship must reach the named berth. In a port charter, arrival within the port at the usual waiting place may be enough, depending on the charter wording and local practice.

Disputes often arise where ships are ordered to wait outside port limits because no berth is available. Charterers may argue that the ship has not arrived because it is not within the port. Shipowners may argue that the ship is at the customary waiting place and should be entitled to tender NOR (Notice of Readiness). The answer depends on the Charterparty wording and whether special clauses have been included.

The term WIBON (Whether In Berth or Not) allows NOR (Notice of Readiness) to be tendered even if the ship is not yet at the berth, provided it is at the permitted waiting place and the berth is unavailable. Some forms also refer to a customary waiting place outside the port. This wording is important where congestion prevents the ship from reaching the berth immediately.

When the ship is waiting at a distant anchorage, port health and customs authorities may not immediately board the ship. In such cases, Shipowners often seek protective wording such as WIFPON (Whether In Free Pratique Or Not) and WICCON (Whether In Customs Clearance or Not). Together, the abbreviated form WIBON, WIFPON, WICCON (WWW) is commonly used in negotiations to allow NOR (Notice of Readiness) to be tendered despite berth unavailability, free pratique delay, or customs clearance delay, subject always to the exact charter wording.

b- Ship's Readiness

Ship's Readiness means that the ship is actually ready to load or discharge the cargo in the required physical and legal sense. Physical readiness may include clean, dry, odor-free, pest-free, and suitable holds for dry cargo; proper tanks, lines, pumps, heating, inert gas arrangements, and cargo systems for tankers; working cargo gear where the ship is responsible for gear; and general condition suitable for the cargo.

Legal readiness may include free pratique, customs clearance, port permission, documents, certificates, and any other legal requirement necessary before cargo operations can begin. Whether legal readiness is required before NOR (Notice of Readiness) depends on the Charterparty and any WIFPON/WICCON wording. Even where such wording exists, the ship must not be fundamentally unable to perform the cargo operation.

If the ship is not ready when NOR (Notice of Readiness) is tendered, the notice may be void. For example, if holds are rejected for contamination, infestation, odor, rust scale, cargo residue, or water, the ship may not be ready. If the NOR (Notice of Readiness) is invalid, laytime does not start unless the Charterparty contains a saving provision or a new valid NOR (Notice of Readiness) is later tendered.

Because a NOR (Notice of Readiness) cannot be backdated, the safest practice is to tender NOR (Notice of Readiness) early where arguably valid and to tender further notices whenever readiness improves or formalities are completed. A verbal NOR (Notice of Readiness) is generally not acceptable unless the Charterparty clearly permits it. NOR (Notice of Readiness) should be in written form by email, telex, fax, or another recognized written method.

Some clauses are amended to require NOR (Notice of Readiness) to be “accepted.” However, acceptance of NOR (Notice of Readiness) is not a legal requirement unless the Charterparty makes it one. The important issue is whether NOR (Notice of Readiness) was validly tendered. A Charterer cannot defeat a valid NOR (Notice of Readiness) simply by refusing to accept it, unless the contract gives that effect.

Demurrage and Despatch

Demurrage and Despatch are the financial consequences of using more or less than the allowed laytime. Demurrage is the agreed amount payable by the Charterer when laytime is exceeded. Despatch is the amount payable by the Shipowner when cargo operations are completed before laytime is exhausted, if the Charterparty provides for despatch.

Demurrage is usually agreed as a daily rate or pro rata for part of a day. In law, demurrage is often described as “Liquidated Damages” because it is a pre-agreed amount payable for detention of the ship beyond the allowed laytime. This avoids the need for the Shipowner to prove actual loss for every hour of delay, provided the demurrage clause applies.

The well-known expression “Once on Demurrage, Always on Demurrage” means that, after laytime has expired and the ship is on demurrage, ordinary laytime exceptions normally no longer protect the Charterer. Periods that would have stopped laytime, such as bad weather, holidays, and strikes, may continue to count during demurrage unless the Charterparty expressly says otherwise. However, if delay is caused by a breakdown of the ship’s gear where the ship’s gear is the cause of the interruption, demurrage may be suspended for the time lost, depending on the clause and facts.

Despatch operates differently. Despatch Money is a form of bonus paid by the Shipowner to the Charterer for completing cargo operations in less than the allowed time. The despatch rate is often half the agreed Demurrage rate, but this is not automatic. It must be found in the Charterparty.

What Time Counts and What Does Not

What Time Counts and What Does Not depends on the laytime clause, the exceptions clause, and the factual record. Common interruptions include bad weather, holidays, strikes, moving from anchorage to berth, machinery breakdown, ship gear failure, terminal equipment failure, lack of cargo, lack of documents, congestion, shifting berth, surveys, draft checks, customs delay, and port authority restrictions.

Time spent navigating from anchorage to berth may be excluded if the ship had waited at anchorage for a berth. The logic is that if the berth had been available immediately, the ship would have proceeded directly to the berth and that transit time would not have been part of cargo operations. However, the result depends on the Charterparty and how the movement is recorded.

Weather Working Days and Weather Permitting

Bad weather is one of the most common reasons for laytime interruption. Some cargoes can continue to be worked in rain or snow. Others, such as grain, certain fertilizers, steel, cement, bagged cargo, and moisture-sensitive cargoes, may be damaged if exposed to rain. The Charterparty must state whether bad weather stops laytime and in what circumstances.

The phrase “Weather Working Days” (WWD) means that only days or parts of days on which weather permits work count as laytime. If weather prevents cargo operations while the ship is on berth, time normally does not count. Where the ship is waiting for a berth and weather would have prevented work at the berth, the same weather interruption may also affect the waiting ship, depending on the accepted legal interpretation and the exact wording.

The phrase “Weather Permitting” historically was sometimes used in an attempt to limit weather protection to periods when the ship was actually at berth. However, in modern English-law understanding, the expressions “Weather Working Days” (WWD) and “Weather Permitting” may produce similar results unless the Charterparty expressly limits weather stoppages to the ship on berth. If the parties intend weather to stop time only when the ship is physically alongside and ready to work, this must be stated clearly.

Strike Clause and Labour Interruptions

Many Charterparties contain wording allowing laytime to stop if cargo operations are delayed by a strike involving workers employed directly or indirectly in loading or discharging. Strike clauses vary widely. Some are short exceptions. Others are detailed provisions dealing with prolonged strikes, cancellation rights, shifting port, substitution of berth, and allocation of delay.

A strike may affect stevedores, terminal operators, tug crews, pilots, port workers, truckers, railway staff, customs officers, surveyors, or other workers essential to cargo operations. The more remote the labour dispute, the more important the wording becomes. A general strike in the port may be easier to classify than a strike at an inland mine, railway, warehouse, or receiver’s plant.

If a strike is expected to be lengthy, the parties should not rely only on broad laytime exceptions. The Charterparty should include a separate Strike Clause addressing what happens if cargo cannot be loaded or discharged within a reasonable period. Otherwise, the parties may disagree over whether the ship must wait, whether the port can be changed, whether laytime is suspended, and who bears the cost.

Breakdown of Machinery and Cargo Equipment

Laytime may stop where loading or discharging is delayed by breakdown of machinery or other incidents beyond the control of the charterer. The words beyond the control of the charterer are often disputed. If the broken machinery belongs to the Shipper, Receiver, or a terminal closely connected with the Charterer, the Shipowner may argue that the delay is not beyond the Charterer’s control. If the machinery belongs to an independent terminal operator, the Charterer may argue that the delay falls within the exception.

Ship gear breakdown is different. If the ship’s cranes or grabs are required for cargo operations and one unit fails, the time lost may not count against the Charterer. The Statement of Facts (SOF) should record the exact time of breakdown, the equipment affected, whether cargo operations stopped completely or partially, which hatch was affected, when repairs started, when repairs finished, and when cargo work resumed.

Where shore cranes are used, the Port Agent should identify who owns and operates them. A breakdown of shore cranes owned by the Shipper or Receiver may be treated differently from a breakdown of cranes owned by an independent terminal. The SOF must record facts, not legal conclusions. It should state what happened, when it happened, which equipment failed, and how the cargo operation was affected.

Damages for Detention

Damages for Detention may arise where the Charterparty limits demurrage to a specific number of days or where delay occurs outside the demurrage regime. Some Charterparties state that demurrage is payable only for a limited period. After that period, the Shipowner may claim damages for detention based on the actual loss caused by continued delay.

Demurrage rates are usually agreed at the fixture stage and may reflect the freight market at that time. If delay becomes lengthy, the agreed demurrage rate may no longer reflect the Shipowner’s real loss. A ship detained for weeks or months during a strong market may lose far more than the demurrage rate. A Damages for Detention Clause may allow the Shipowner to claim the actual level of loss after the demurrage period expires.

In many fixtures, clauses limiting demurrage days or converting delay into damages for detention are deleted, and the agreed demurrage rate applies to all time lost after laytime expires. This gives certainty. However, where the clause remains, the parties should understand its financial consequences.

Despatch

Despatch is payable only if the Charterparty provides for it. It rewards the Charterer for completing loading or discharging before laytime expires. Despatch is most common in dry bulk trades, particularly where Charterers can influence the speed of cargo operations. It is generally less common in tanker trades and shortsea coaster trades.

Despatch can create negotiation strategy. Charterers may seek a slow loading or discharging rate to increase the chance of earning Despatch Money. This is not illegal or improper if openly negotiated. However, Shipowners and Shipbrokers should compare the agreed rate with realistic port performance. If the rate is deliberately conservative, the voyage estimate should reflect the likely despatch exposure.

Laytime Saved Vs All-Time Saved

The difference between Laytime Saved (Working Time Saved) and All-Time Saved can significantly affect despatch. If despatch is payable only on Laytime Saved, the calculation ignores periods that would not have counted as laytime. If despatch is payable on All-Time Saved, the calculation includes all calendar time saved between completion and the expiry of laytime, including weekends and holidays that would otherwise have been excluded.

For example, if laytime would have expired at midnight on Monday but cargo operations completed at midnight on Thursday, and the weekend was excluded under SSHEX, despatch on Laytime Saved may cover only the working time saved, perhaps two days. If All-Time Saved is agreed, despatch may cover the whole period saved, perhaps four days. The financial difference can be substantial.

The words used in the Charterparty should therefore be checked carefully. If the clause simply says despatch is payable for “time saved,” disputes may arise. Clear wording should state whether despatch is based on Laytime Saved, Working Time Saved, or All-Time Saved.

Statement of Facts (SOF) and Timesheet

Statement of Facts (SOF) and Timesheet are the documentary foundation of laytime calculation. The Statement of Facts (SOF) records what happened at the port. The Timesheet applies the Charterparty to those facts and calculates demurrage or despatch.

The Timesheet is usually prepared by the Shipowner, operator, or post-fixture department. It shows the time allowed, time used, excluded periods, time on demurrage, despatch, demurrage amount, and any balance. The quality of the Timesheet depends heavily on the accuracy of the Statement of Facts (SOF).

The Statement of Facts (SOF) is usually prepared by the Port Agent. Some agents use their own form. Others use a standard form such as the BIMCO Statement of Facts (SOF) Form. Whatever form is used, the SOF must record factual events accurately, chronologically, and without omission.

A proper Statement of Facts (SOF) normally records:

• when the ship arrived;
• when NOR (Notice of Readiness) was tendered;
• when NOR (Notice of Readiness) was received or acknowledged, if relevant;
• when free pratique and customs clearance were granted;
• when the ship berthed or shifted;
• when loading and discharging operation commenced;
• when each cargo operation stopped and resumed;
• public holidays and non-working periods;
• bad weather periods and their effect on operations;
• breakdown of ship gear, shore cranes, conveyor belts, grabs, pumps, or other machinery;
• strikes, labour interruptions, industrial disputes, and port closures;
• draft survey, sampling, fumigation, hatch inspection, hold cleaning, rain stoppages, and completion of cargo operations;
• when documents were completed and when the ship sailed.

The Ship Master should record relevant events in the Ship's Logbook so that the SOF can be cross-checked. The Port Agent should complete the SOF in time for the Ship Master to review, sign, and stamp it before sailing. The SOF should not omit inconvenient facts. If a Port Agent deliberately or negligently omits material information, the Shipowner or Charterer may suffer loss and seek recovery from the negligent agent.

As its name indicates, the Statement of Facts (SOF) must state facts. It should not be manipulated to favour one party. If the reason for a stoppage is uncertain, the SOF should record the observed facts and source of information rather than inventing a legal explanation.

Reversible Laytime

Laytime may be reversible, meaning that unused time at one port may be applied to another port. For example, a Charterparty may provide “total three days all purposes.” If loading is completed in one day, two days remain for discharge. If loading takes two and a half days, only half a day remains for discharge. This approach treats loading and discharge time as one combined account.

Reversible laytime can benefit whichever party uses time efficiently. It may also reduce disputes because the total time is calculated across the voyage rather than separately at each port. However, it requires accurate records at both loading and discharging ports. If the loading port SOF is incomplete, the discharging port calculation may become unreliable.

Where laytime is reversible and demurrage is incurred at the loading port, the Shipowner may have a lien over cargo if the Charterparty provides such a right. A lien is a legal right to hold the cargo as security for unpaid demurrage or other sums. If demurrage remains unpaid, the Shipowner may refuse to begin discharge or may ask the Port Agent to arrange storage ashore where the cargo can be held, depending on local law and practical feasibility.

Per Hatch and Workable Hatch Clauses

Some Charterparties calculate laytime by reference to tonnes per hatch rather than one fixed total rate. For example, the clause may state that loading is to be performed at “300 tonnes per workable hatch per day.” The result depends on how many hatches are workable, whether the cargo is distributed evenly, and when each hatch is completed.

Per hatch clauses can produce unexpected results. A small change in wording, such as “per hatch,” “per workable hatch,” “per weather working day,” or “per available hatch,” may change the calculation. Port Agents should record precisely when work starts and finishes at each hatch. If one hatch completes early while another continues, that information may affect the laytime calculation.

Where the cargo is not evenly distributed among hatches, the calculation may become contentious. Shipowners, Charterers, and Shipbrokers should pay careful attention to stowage plans, hatch distribution, and cargo-handling equipment before agreeing a per hatch formula.

Laytime Stoppages

Laytime Stoppages must be recorded with exceptional care. Common stoppages include rain, snow, high wind, swell, dust restrictions, port closures, crane breakdown, conveyor failure, ship gear breakdown, strikes, shortage of trucks, lack of barges, lack of cargo, draft survey, fumigation, customs inspection, power failure, berth shifting, and safety stoppages.

The Port Agent must record the start and end of each stoppage, the reason given, the source of the information, whether cargo operations stopped completely or partially, which holds or hatches were affected, and whether alternative cargo operations continued. The difference between a full stoppage and a partial stoppage may be important where the Charterparty allows prorated counting.

If ship’s cranes are used and one crane fails, the time that crane is out of action should be recorded separately. It may be necessary to identify whether other cranes continued to work, whether the failed crane affected one hatch only, and whether the operation was slowed or stopped. If shore cranes are used, the SOF should state whether the cranes were owned by the Shipper, Receiver, or independent terminal operator, where this is known.

The Port Agent should avoid drawing legal conclusions. Instead of writing “time not to count,” the better approach is to record that “No. 2 shore crane stopped due to mechanical failure from 10:15 to 13:40; loading continued with two remaining cranes at reduced rate.” The parties can then apply the Charterparty to the facts.

Port Agent’s Responsibility in Laytime Records

The Port Agent’s role in laytime documentation is critical. The agent is often the only neutral person with access to the ship, terminal, local working conditions, holiday calendar, weather records, cargo operation times, berth movements, and port communications. A poor SOF can create a dispute that lasts long after the ship has sailed.

The Port Agent should never omit important facts because one party requests it. The agent should also avoid accepting vague reasons for stoppages. If cargo operations stop, the agent should find out why. Was it rain? Was it lack of trucks? Was it crane failure? Was it no cargo available? Was it port order? Was it safety inspection? The legal effect may differ sharply depending on the real cause.

Masters may not always know the exact local reason for a stoppage. The Port Agent’s local expertise is therefore valuable. If the Port Agent wants to preserve a professional reputation, the Port Agent must record the facts accurately and resist pressure to distort the record.

Practical Laytime Guidance for Shipowners, Charterers, and Agents

Shipowners should make sure that the Ship Master and Port Agent understand the NOR (Notice of Readiness) requirements before arrival. If the Charterparty permits tender at anchorage, outside port limits, or before free pratique/customs clearance, the instructions should be clear. If the Charterparty requires tender during office hours or by a specific method, this must be followed.

Charterers should ensure that cargo, berth, labour, documents, and equipment are ready when the ship arrives. If the Charterer expects to rely on weather, holidays, strike, or machinery breakdown exceptions, those events must be properly recorded. A Charterer cannot rely on vague delay allegations unsupported by the SOF.

Port Agents should maintain a chronological record from arrival until sailing. Every NOR (Notice of Readiness), weather stoppage, cargo stoppage, shift, survey, document delay, crane breakdown, and resumption time should be recorded. The SOF should be prepared promptly and signed before departure wherever possible.

Practical Laytime Calculation Method

A practical laytime calculation should begin with the Charterparty, not with the Statement of Facts (SOF). The Statement of Facts (SOF) supplies the factual record, but the Charterparty determines how those facts are treated. The same port events may produce different financial results under different wording. A rain stoppage may be excluded under one clause, counted under another, and counted at half rate under a third. Therefore, the first step is always to identify the exact laytime clause, NOR (Notice of Readiness) clause, exceptions clause, demurrage clause, despatch clause, and any rider clauses that amend the printed form.

The calculation should then follow a disciplined order. First, identify the cargo quantity and the agreed loading or discharging rate. Second, calculate the laytime allowance. Third, identify when a valid NOR (Notice of Readiness) was tendered. Fourth, apply the notice period before laytime begins. Fifth, enter every working period and every stoppage chronologically. Sixth, apply the exceptions exactly as written. Seventh, determine when laytime expires. Eighth, calculate demurrage or despatch at the agreed daily rate, pro rata for part of a day unless the Charterparty states otherwise.

This method avoids one of the most common errors in laytime work: beginning with the final cargo completion time and working backward. Laytime is not a rough commercial estimate. It is a contractual calculation. Every line in the Timesheet should be capable of being traced to the Charterparty and to an event recorded in the Statement of Facts (SOF), Ship’s Logbook, NOR (Notice of Readiness), weather report, terminal record, or written port communication.

Where a Charterparty states that cargo is to be loaded at a rate per day, the parties must confirm whether the day is a calendar day, running day, weather working day, working day, or some other contractual day. A rate of 8,000 metric tons per day may produce one result if every calendar day counts and a very different result if Sundays, holidays, and bad weather are excluded. The calculation is therefore not complete until both the quantity and the type of day have been correctly identified.

Care must also be taken with decimals and time conversion. Laytime is often calculated in days, hours, and minutes. A demurrage rate may be stated per day, but the delay may be only several hours. The calculation must convert time accurately. A delay of 6 hours is 0.25 of a day. A delay of 12 hours is 0.5 of a day. In high-value trades, a small time error can produce a significant money difference. Accurate arithmetic is as important as accurate legal interpretation.

Berth Charter and Port Charter in Laytime

The distinction between a berth charter and a port charter is central to the question of when the ship becomes an arrived ship. In a berth charter, the ship is generally not an arrived ship until it reaches the named berth or the berth identified under the contract. If the berth is occupied and the ship waits at anchorage, laytime may not start unless the Charterparty contains protective wording such as WIBON (Whether In Berth or Not) or other clauses allowing NOR (Notice of Readiness) to be tendered before berthing.

In a port charter, the ship may become an arrived ship when it reaches the port or the usual waiting place within the port area, provided it is at the effective disposition of the Charterer. This can allow NOR (Notice of Readiness) to be tendered before the ship is physically alongside. However, port limits, anchorage practice, port authority instructions, and the wording of the Charterparty must all be considered. A ship waiting far outside the port at an offshore anchorage may not automatically be treated in the same way as a ship waiting at the ordinary port anchorage.

Modern port congestion has made this distinction even more important. Large bulk carriers, tankers, and gas carriers may be ordered to wait at anchorages many miles from the berth. In some ports, congestion anchorages are outside formal port limits but are customarily used for ships waiting for berth availability. If the Charterparty contains clear wording allowing NOR (Notice of Readiness) at a customary waiting place, the Shipowner may be protected. If the Charterparty is silent, the Shipowner may face an argument that the ship has not reached the contractual destination.

Shipbrokers should therefore avoid treating arrival wording as routine. The freight rate, demurrage rate, and port congestion risk should be negotiated together with the arrival and NOR (Notice of Readiness) provisions. A Shipowner fixing a congested port without WIBON or equivalent wording may unintentionally accept a long waiting risk. A Charterer agreeing broad NOR (Notice of Readiness) wording may accept responsibility for waiting time before the ship is at berth. Both sides must understand what risk they are pricing.

Readiness in Dry Bulk Trades

In dry bulk shipping, readiness is often tested by the condition of the holds. The ship must be fit to receive the contractual cargo. For grain, holds may need to be grain clean, dry, odor-free, free of infestation, and suitable for survey approval. For coal, ore, petcoke, salt, fertilizer, cement, or steel cargoes, different standards may apply. The required standard should be understood before arrival, not discovered when the surveyor rejects the holds.

Hold cleanliness disputes frequently affect NOR (Notice of Readiness). If the ship tenders NOR (Notice of Readiness) but the holds are later rejected because they are not cargo-ready, the Charterer may argue that the notice was invalid. If the holds are cleaned and later passed, the Ship Master should tender a fresh NOR (Notice of Readiness) immediately. The Statement of Facts (SOF) should record the inspection, rejection, cleaning period, reinspection, passing time, and any fresh NOR (Notice of Readiness).

The standard of readiness is not the same for every cargo. A hold suitable for coal may not be suitable for grain. A hold that has carried sulphur may require special cleaning before fertilizer or grain. A hold with loose rust scale may be unacceptable for steel products. A hold with remaining residues may contaminate a sensitive cargo. Shipowners and Charterers should therefore avoid generic phrases if the cargo requires a special standard. If “grain clean” or “hospital clean” is required, the Charterparty should state it clearly.

Readiness also includes the ship’s ability to perform cargo operations. If the ship’s cranes are required under the Charterparty, they must be operational. If grabs, grabs certificates, hatch covers, ballast systems, lighting, or cargo-handling equipment are necessary for the operation and are the Shipowner’s responsibility, defects may affect readiness. A ship can be physically at the berth but not legally or operationally ready.

Readiness in Tanker Trades

Laytime in tanker trades has its own practical character. Tanker terminals often operate continuously, and laytime clauses are commonly expressed in hours rather than days. Many tanker Charterparties provide a fixed number of hours for loading and discharge, often with detailed provisions on NOR (Notice of Readiness), free pratique, berth availability, shifting, pumping time, hoses, inspections, documents, and terminal restrictions.

Tanker readiness is closely connected with cargo systems. The ship may need clean tanks, proper previous-cargo history, valid certificates, working pumps, cargo lines, inert gas systems where required, heating equipment, vapour return arrangements, manifold readiness, and compliance with terminal safety requirements. If the ship fails a terminal inspection or cannot load the nominated grade because tanks are not suitable, NOR (Notice of Readiness) may be challenged.

Free pratique and customs clearance can also become important in tanker trades. Some forms allow NOR (Notice of Readiness) to be tendered whether free pratique has been granted or not, provided the ship is otherwise ready and the delay is a mere formality. However, if there is a real health issue on board or the ship cannot lawfully commence operations, the protective wording may not save the NOR (Notice of Readiness). The difference between a routine formality and a real legal obstacle must be understood.

Pumping performance is another tanker-specific issue. The Charterparty may require the ship to discharge within a certain number of hours or maintain a minimum pressure at the manifold. If discharge is delayed because the ship’s pumps are inefficient, time may be deducted or demurrage may be reduced. If the delay is caused by shore restrictions, full shore tanks, lack of receiving capacity, or terminal instructions, the result may be different. Accurate records of pressure, stoppages, shore instructions, line changes, and pumping rates are essential.

Notice Period After NOR (Notice of Readiness)

The notice period after NOR (Notice of Readiness) is sometimes called “turn time” or “free time.” It is the contractual period between tender of NOR (Notice of Readiness) and the commencement of laytime. Its purpose is to give the Charterer, Shipper, Receiver, or terminal a short period to prepare. The length of this period varies widely between trades and forms.

Some clauses provide that laytime begins at 08:00 on the next working day after NOR (Notice of Readiness) is tendered during office hours. Others provide that laytime begins six hours after tender, whether in berth or not. Some tanker clauses may give six hours after NOR (Notice of Readiness), unless loading or discharge commences earlier. Some dry bulk clauses may provide for laytime to begin at 13:00 if NOR (Notice of Readiness) is tendered before noon, or at 06:00 the next working day if tendered after noon.

If cargo operations begin before the notice period expires, the Charterparty may provide that time actually used counts immediately. This is commercially logical. If the Charterer begins loading or discharging, the Charterer has effectively used the ship. However, the exact clause must be checked. Some wording counts all time from commencement of operations. Other wording counts only the time actually used before ordinary laytime would have started.

Office-hour restrictions can be critical. A NOR (Notice of Readiness) tendered at 18:00 on Friday may be treated differently from one tendered at 10:00 on Friday if the Charterparty requires tender during office hours. Holidays and weekends may also affect when the notice period runs. The Port Agent should therefore know the local office hours and holiday calendar before the ship arrives.

Interruptions, Exceptions, and Exclusions

Laytime clauses often use words such as interruptions, exceptions, exclusions, suspensions, and periods not to count. These words are sometimes used loosely, but their effect can differ. An exception may prevent laytime from counting during a specified event. A suspension may stop the running clock while the event continues. An exclusion may remove certain periods from the calculation altogether. The commercial result may be similar in many cases, but not always.

For example, a clause excluding Sundays and holidays removes those periods from laytime unless time used counts under a separate provision. A weather exception may stop time only when weather prevents the cargo operation. A strike clause may suspend laytime only while the strike actually prevents loading or discharge. A breakdown clause may apply only if the breakdown is beyond the Charterer’s control. Each clause requires a factual link between the event and the delay unless the wording is broad enough to exclude time regardless of actual effect.

Parties often dispute causation. If rain occurs but no cargo was available, did weather delay the operation? If a crane breaks down but the hatch was already complete, did the breakdown cause time loss? If a strike affects truck drivers but cargo was already alongside, did the strike interrupt loading? The Statement of Facts (SOF) should provide enough detail to answer these questions. It should not simply write “rain” or “strike” without explaining whether operations stopped, slowed, or were unaffected.

Another common issue is partial interruption. If one hatch stops due to rain-sensitive cargo but another hatch continues working with weather-resistant cargo, should laytime stop completely or only partly? If three cranes are working and one breaks down, should time stop entirely, be prorated, or continue in full? The answer depends on the Charterparty. Where partial stoppages are likely, the clause should state how they are to be treated.

Demurrage Claim Documentation

A demurrage claim is only as strong as its documents. The typical claim package includes the Charterparty, recap, fixture note, NOR (Notice of Readiness), Statement of Facts (SOF), Timesheet, pumping logs in tanker trades, weather records where relevant, holiday calendar, port or terminal notices, invoices if expenses are claimed, and a clear calculation showing the amount due.

Many Charterparties contain time bars for demurrage claims. The Shipowner may be required to submit the claim and supporting documents within a fixed period after completion of discharge, sometimes 30, 60, 90, or 120 days. If the claim is submitted late or without required documents, the claim may be barred. Post-fixture departments must therefore monitor deadlines carefully.

The claim should be presented in a way that allows the Charterer to understand the calculation. A Timesheet should show when laytime started, what time counted, what time was deducted, when laytime expired, and how demurrage was calculated. If the calculation relies on a disputed interpretation, the explanation should identify the clause. A vague invoice for demurrage without supporting detail invites rejection.

Charterers should review demurrage claims promptly. If the Charterer disagrees, the response should identify the disputed periods and the reason for disagreement. General rejection without analysis rarely resolves the issue. A practical settlement often depends on comparing the Charterparty wording with the SOF line by line.

Despatch Claim Documentation

Despatch claims require the same discipline as demurrage claims. The Charterer must show that cargo operations completed before laytime expired and that the Charterparty provides for despatch. The calculation must identify whether despatch is payable on Laytime Saved, Working Time Saved, or All-Time Saved. The rate must be confirmed, usually as an agreed amount or as half demurrage.

Despatch can be controversial because it effectively reduces the Shipowner’s voyage return. Shipowners may scrutinize despatch claims carefully, especially where the loading or discharging rate was conservative. A Charterer claiming despatch should therefore provide a clear Timesheet and supporting SOF. If operations completed before the expiry of the notice period or during excluded time, the exact wording must be applied.

In some trades, despatch is a deliberate commercial feature. Charterers with strong terminal control may negotiate low loading or discharging rates and earn predictable despatch. Shipowners may accept this if the freight compensates them or if the port is known for reliable performance. The key is transparency. Despatch should be treated as part of the freight economics, not as an afterthought.

Lien for Demurrage and Cargo Security

Many Voyage Charterparties give the Shipowner a lien over cargo for freight, deadfreight, demurrage, and other sums due. A lien is a right to retain possession of cargo until payment is made or security is provided. In laytime disputes, the lien may become important where demurrage has already accrued at the loading port or where the Charterer is financially unreliable.

Exercising a lien is not always simple. Local law may restrict the Shipowner’s right to hold cargo. The cargo may belong to a third-party Bill of Lading holder who is not personally liable for demurrage. The port may not allow the ship to remain at berth while a commercial dispute continues. Storage ashore may be expensive or unavailable. Perishable cargo, dangerous cargo, or bulk cargo may create practical difficulties.

If the Shipowner intends to exercise a lien, the Shipowner should obtain legal advice before discharge. The Port Agent may be asked to arrange warehouse storage, notify receivers, or coordinate with local authorities. The agent must not take legal steps beyond authority. A wrongfully exercised lien can expose the Shipowner to cargo claims, delay claims, and possible arrest.

Laytime Under Multiple Loading or Discharging Ports

Many voyages involve more than one loading port or more than one discharging port. The laytime clause must state whether time is calculated separately at each port, jointly across all loading ports, jointly across all discharging ports, or as one total allowance for all purposes. Ambiguity can lead to major disputes.

If laytime is separate, unused time at one port does not automatically transfer to another port. If laytime is reversible or averaged, unused time may be credited elsewhere. If the clause states “total laytime for loading and discharge,” the entire voyage may be treated as one account. The difference can determine whether demurrage is payable at the first port or only after all cargo operations are complete.

Multiple-port voyages also create documentation challenges. Each port may have a different Port Agent, different SOF format, different holiday calendar, and different local practice. Post-fixture teams should collect and reconcile all records before preparing the final Timesheet. Inconsistency between port documents may weaken a demurrage claim or despatch claim.

Where the ship shifts between berths in the same port, the Charterparty should state whether shifting time counts. If the shift is for the Charterer’s purposes, Shipowners often argue that time should count. If the shift is required by port authority for reasons unrelated to cargo operations, the result may depend on the exceptions clause. The SOF should identify who ordered the shift and why.

Laytime and Cargo Documents

Laytime disputes are not limited to physical cargo work. Documents can also delay the ship. Bills of Lading (B/L), mate’s receipts, customs papers, cargo certificates, certificates of origin, quality certificates, phytosanitary certificates, fumigation certificates, draft survey reports, and terminal documents may be needed before the ship can sail. Whether document time counts as laytime or demurrage depends on the Charterparty and the cause of delay.

If loading is complete but the ship cannot sail because the Charterer, Shipper, or their agents have not provided cargo documents, the Shipowner may claim detention, demurrage, or damages depending on the clause. Some Charterparties contain specific provisions for time lost waiting for documents. Others treat the delay under general principles.

Document delays should be recorded precisely. The SOF should state when cargo operations completed, what documents were outstanding, who was responsible, when documents were received, when clearance was granted, and when the ship sailed. A vague entry such as “waiting documents” may not be enough if the claim becomes disputed.

Laytime and Port Congestion

Port congestion is one of the most commercially important causes of waiting time. Whether congestion time counts depends on whether the ship is an arrived ship and whether a valid NOR (Notice of Readiness) has been tendered. If the Charterparty contains berth-only wording without WIBON protection, the Shipowner may bear congestion risk until the ship reaches the berth. If the Charterparty allows NOR (Notice of Readiness) at anchorage or customary waiting place, the Charterer may bear much of the waiting risk after the notice period expires.

Congestion should be considered before fixing. Some ports are seasonally congested because of harvest, monsoon, ice, draft restrictions, low river levels, terminal maintenance, public holidays, or export surges. A Shipowner fixing into such a port should seek suitable arrival and NOR (Notice of Readiness) wording. A Charterer expecting congestion should understand the demurrage exposure and consider whether freight has been priced accordingly.

The SOF should record arrival at the pilot station, anchorage, waiting area, port limits, berth order, berthing prospects, pilot boarding, shifting, and all communications from the port or terminal about berth availability. If the ship is delayed because previous ships are unable to work due to weather, the interaction between congestion and weather exceptions may become important.

Common Laytime Drafting Mistakes

Many laytime disputes are caused by avoidable drafting mistakes. One common mistake is combining standard printed wording with rider clauses that contradict it. A printed form may say laytime begins 24 hours after NOR (Notice of Readiness), while a rider clause says time starts six hours after NOR (Notice of Readiness). Unless priority is clear, the parties may dispute which clause applies.

Another mistake is using abbreviations without understanding them. SHINC, SHEX, SSHEX, WWD, WIBON, WIFPON, WICCON, WWW, ATDNSHINC, and similar expressions can carry significant legal consequences. A recap that uses abbreviations loosely may later create uncertainty. Shipbrokers should confirm the intended meaning in full where the clause is commercially important.

A further mistake is failing to state whether despatch applies. If the parties intend no despatch, the Charterparty should say so. If despatch applies, the rate and basis should be stated clearly. If despatch is to be paid only on working time saved, the clause should not use vague wording that could support an all-time-saved argument.

Parties also frequently fail to address partial stoppages. In ports using multiple cranes, hatches, belts, pumps, or loading arms, operations may slow down rather than stop completely. If the Charterparty does not say how reduced-rate work is treated, disputes may follow. A precise clause can save large amounts of post-fixture argument.

Common Operational Mistakes in Laytime

Operational mistakes can be as damaging as drafting mistakes. The most serious is failure to tender NOR (Notice of Readiness) promptly. The second is tendering NOR (Notice of Readiness) but failing to preserve evidence that it was sent and received. Every NOR (Notice of Readiness) should show the date, time, method, recipient, and authority under which it was tendered.

Another common mistake is allowing the SOF to be completed after the ship has sailed without proper Master review. Once the ship has left, it may be difficult to correct errors. The Master should review the SOF carefully, compare it with the logbook, and issue a letter of protest if the terminal or agent refuses to record important facts accurately.

Port Agents sometimes write conclusions instead of facts. Entries such as “time not to count,” “delay for Charterer’s account,” or “weather exception applies” are not ideal. The agent should record what happened. The legal effect belongs in the Timesheet and claim analysis, not in the factual record.

Finally, parties sometimes ignore local holidays or working customs. A holiday that is not obvious internationally may be important locally. If a port works only half day before a holiday, the SOF should record it. If a holiday is worked at overtime rates, the SOF should record whether cargo operations actually took place. Accurate local knowledge can decide the final claim.

Laytime as a Commercial Risk Allocation Tool

Laytime is not only a legal calculation. It is also a commercial risk allocation tool. By agreeing the loading and discharging rates, the parties decide who bears the risk of port productivity. By agreeing SHINC or SHEX, they decide who bears weekend and holiday risk. By agreeing Weather Working Days, they decide who bears weather risk. By agreeing WIBON and related terms, they decide who bears berth congestion risk. By agreeing demurrage and despatch, they decide the financial consequence of delay or early completion.

For Shipowners, laytime protection is part of earning capacity. A ship delayed at port may miss the next cargo, lose a favourable market, incur extra bunkers, extend financing costs, and disrupt fleet scheduling. For Charterers, laytime exposure affects delivered cargo cost, sale margins, terminal planning, and supply-chain reliability. A demurrage claim may turn a profitable cargo into a loss-making shipment.

Good laytime drafting therefore supports good commercial planning. The clause should reflect realistic port performance, cargo sensitivity, terminal capacity, seasonal weather, berth congestion, and the party best able to manage the risk. A Charterer controlling the terminal may reasonably accept more operational risk. A Shipowner choosing the ship and gear may accept ship-equipment risk. A neutral external risk may be priced through freight or demurrage.

Laytime Checklist for Ship Masters and Port Agents

Ship Masters and Port Agents can reduce disputes by following a simple practical checklist. Before arrival, they should review the NOR (Notice of Readiness) clause, tendering method, office hours, arrival requirements, free pratique and customs wording, berth or port charter status, and cargo readiness requirements. They should know whether NOR (Notice of Readiness) may be tendered at anchorage, outside port limits, or before berth availability.

On arrival, the Ship Master or Port Agent should tender NOR (Notice of Readiness) in writing if there is a reasonable basis to do so. They should keep proof of transmission and receipt. If there is doubt, further notices should be tendered without prejudice to earlier notices. If holds, tanks, certificates, free pratique, customs, or other formalities are later completed, an additional NOR (Notice of Readiness) should be sent.

During cargo operations, the Port Agent should record every relevant event in real time. Stoppages should include start time, end time, cause, affected equipment, affected hatch or tank, and whether work continued elsewhere. Weather stoppages should identify the weather condition and its effect on cargo work. Machinery stoppages should identify whether the equipment was ship’s gear, shore gear, or terminal equipment.

Before sailing, the Master should compare the SOF with the Ship’s Logbook and issue any necessary reservations. If the Master disagrees with a terminal record, the Master should sign under protest or attach a letter of protest where appropriate. After sailing, the post-fixture department should receive the SOF, NOR (Notice of Readiness), logs, weather records, and port documents promptly so that time bars are not missed.

Laytime and Evidence in Maritime Disputes

Laytime disputes are evidence-driven. A party may have a strong legal argument but fail because the facts are not proved. The best evidence is usually contemporaneous evidence created at the time of the event. The Statement of Facts (SOF), Ship’s Logbook, terminal logs, weather station records, emails, notices, Port Agent reports, and surveyor attendance sheets are therefore crucial.

Courts and arbitrators generally prefer precise time records over later recollections. A statement made months after the voyage may be less persuasive than an SOF entry signed at the port. However, the SOF is not conclusive if it is wrong. It is evidence, not an unchangeable truth. If the SOF conflicts with reliable independent records, the dispute will be resolved by weighing all evidence.

Photographs, videos, crane logs, AIS records, VHF transcripts, pilot records, and terminal statements may also help. In modern shipping, digital records can be extremely useful, but they must be preserved. If a party knows that a laytime dispute is likely, relevant records should not be deleted or overwritten.

Professional laytime handling is therefore both documentary and strategic. The party that records facts accurately at the time is usually in a stronger position than the party trying to reconstruct the port call later.

Conclusion

Laytime is the time mechanism that connects voyage chartering, port operations, and financial responsibility. It determines when the Charterer’s allowed time starts, how much time is available, which periods count, which periods are excluded, when demurrage begins, whether despatch is payable, and how port events are converted into money.

The key to laytime is precision. The NOR (Notice of Readiness) must be validly tendered. The ship must be an arrived ship and ready. SHINC, SHEX, SSHINC, SSHEX, weather, overtime, strike, machinery breakdown, demurrage, despatch, reversibility, and per hatch wording must be read exactly as written. A small drafting difference can change the final calculation.

Accurate records are equally important. The Statement of Facts (SOF), Ship’s Logbook, NOR (Notice of Readiness), port communications, weather records, and Timesheet form the evidential basis of every demurrage or despatch claim. A carefully drafted Charterparty and a reliable Statement of Facts (SOF) can prevent many disputes. A vague clause or incomplete SOF can turn an ordinary port call into a costly legal argument.