Vessel time charter explained
A time charter gives the charterer commercial use of a vessel while the owner retains possession, navigation and vessel management. The daily hire is only the headline. Cost allocation, performance and redelivery decide the actual result.
Updated 10 August 2026
What a time charter is
Under a vessel time charter, the owner provides a crewed and managed ship for an agreed period or trip. The charterer pays daily hire and directs the vessel's commercial employment within the limits of the charter party. The owner keeps possession of the ship and remains responsible for the master, crew, maintenance, class and navigation.
That split is fundamental. The charterer may order the vessel to an agreed port and nominate a permitted cargo. The master still controls safe navigation and the owner remains responsible for the vessel as a ship. Employment instructions do not transfer ownership, possession or the master's navigational authority to the time charterer.
A time charter therefore buys more than transport for one parcel. It buys a defined period of commercial capacity. Our separate voyage charter and time charter comparison covers the choice between structures. This guide focuses on what happens after time-charter terms are selected.
Who pays for what
The normal cost split follows the same division between vessel management and commercial employment. The signed charter party can alter it, so the table is a starting point rather than a substitute for the fixture terms.
| Owner's usual account | Charterer's usual account |
|---|---|
| Master, officers and crew | Daily or pro rata hire |
| Maintenance, repairs and stores | Bunkers while on hire |
| Hull insurance and vessel management | Port charges, agency and canal costs |
| Class and statutory vessel certificates | Cargo handling and cargo-related costs |
| Costs arising from an owner-side deficiency | Costs arising from employment orders |
Hire continues while the vessel is available for service, including ordinary steaming, port time, waiting caused by the charterer's employment and ballast ordered for the next cargo. That is why the cheapest daily rate is not necessarily the cheapest ship. Fuel performance, port exposure and the time needed to complete the programme can outweigh a small difference in hire.
Delivery, period and redelivery
The charter starts when the vessel is delivered in the condition, place and time required by the charter party. Delivery provisions identify the range or point, cancelling window, notices, condition of holds or tanks and the survey or certificate used to record bunkers on board.
Period wording must be read with any tolerance. A term described commercially as six months may include an express margin or a qualified minimum and maximum. The final voyage must be legitimate in the sense required by the charter and reasonably expected to permit redelivery within the agreed range. Forecasting that voyage is a daily chartering task, not something left until the final week.
Redelivery ends the service and should mirror the delivery discipline. Check the permitted redelivery range, notices, vessel condition, cargo residues, bunker quantities and prices. A ship returned early or late can expose either side to a difference between the charter hire and the market during the disputed period. The contract and facts control that assessment.
Hire and payment mechanics
Hire is normally quoted as a daily amount and paid in advance at the intervals stated in the charter party. The due date, currency, banking instructions, grace machinery and owner's rights following late payment all need to be read together. A commercial team should calendar payment from the contract, not from an assumed market routine.
Deductions are equally clause-specific. A charterer should not deduct an estimated claim merely because a vessel appears to have underperformed. Off-hire, speed and consumption claims, cash advanced for the owner's account and other credits may each have different notice, evidence and reconciliation requirements.
When comparing time-charter hire with voyage employment, a time charter equivalent calculation converts the voyage result into a daily amount. The comparison still needs consistent timing and cost assumptions. TCE is not a replacement for the charter-party economics.
Bunkers, speed and consumption
The charterer usually takes over and pays for the bunkers on board at delivery, then the owner takes over and pays for the bunkers remaining at redelivery. The agreed clause should identify grades, approximate quantities, prices and any minimum or maximum remaining on board. Survey figures and sampling records matter because a small quantity difference can be commercially material.
While on hire, the charterer chooses where and when to stem within the vessel's operational and contractual limits. Fuel must meet the required specification. Quantity, compatibility, delivery method and time at the bunker port need to be planned against the trading programme.
Speed and consumption wording describes expected performance under stated conditions. The vessel's description, weather threshold, sea state, current treatment, good-weather periods, hull condition and instruction to proceed at another speed can all affect a claim. A noon-report comparison alone does not settle whether the contractual warranty was met.
Performance also changes the commercial result before any claim is considered. A slower passage uses more hire days. A higher consumption uses more bunkers. Both should be tested in the voyage plan rather than treated as a dispute exercise after redelivery.
Off-hire
Off-hire is the contractual mechanism that stops hire when a qualifying event deprives the charterer of the vessel's agreed service. It is not a general fairness rule. The event, the loss of time or service and the method of calculation must fall within the clause.
Machinery breakdown, crew deficiency, detention or another event may be listed, but labels do not decide the answer on their own. The same incident can produce different results under different wording. A repair that causes no loss of time to the charterer's programme may be treated differently from one that stops the vessel for two days.
Keep contemporaneous evidence. Deck and engine logs, notices, statements of facts, port records, instructions and the time at which service resumed are more useful than a retrospective summary. The charter party may also require prompt notice or supporting material before a deduction is made.
Employment limits and external risk
The charterer's freedom to employ the vessel is bounded by the agreed trading area, safe-port wording, cargo exclusions, vessel capabilities and applicable restrictions. An order can be commercially attractive and still fall outside the charter.
- Trading limits
- Geographic limits, seasonal areas, ice restrictions and named exclusions define where the vessel may trade.
- Ports and berths
- Safe-port and safe-berth obligations depend on the clause and the circumstances in which the order is given.
- Cargo
- Permitted trades, dangerous goods, contamination risk and hold or tank suitability should be checked before an order is issued.
- War risk and sanctions
- Specific clauses allocate rights, additional cost and cancellation or refusal machinery. They need to match the intended programme.
- Bills of lading
- The master may be required to sign or authorise cargo documents within the charter terms, subject to protections and instructions in the contract.
These limits are not boilerplate. A period ship may trade through several regulatory, security and seasonal environments. Review the planned range before fixing, then screen each proposed employment as it arises.
Period, trip and bareboat charters
Period time charter
The vessel is hired for a calendar period, subject to the contractual tolerance. It suits a programme that needs continuing capacity and a charterer equipped to manage bunkers, ports, cargoes and daily employment.
Trip time charter
The same time-charter allocation is used for a defined trip or route. Hire runs for the trip and the charterer pays the employment costs. This can suit a cargo where the parties want daily hire and performance allocation without a longer period commitment.
Bareboat or demise charter
A bareboat charter is fundamentally different. The vessel is provided without the owner's crew, and possession and operating responsibility move much further towards the charterer. It belongs closer to vessel leasing and operation than to ordinary cargo procurement. A time charter does not make the charterer the vessel's operator in that sense.
When a cargo owner should consider time charter
Time charter becomes relevant when control and continuity are worth the added exposure. Typical reasons include a repeating cargo programme, several possible load or discharge combinations, uncertain cargo timing, a need to combine parcels or a commercial view on future freight.
It requires capability on the charterer's side. Someone must plan voyages, buy bunkers, appoint agents, monitor performance, issue employment orders, manage cargo documents and forecast redelivery. Without that discipline, a fixed daily rate creates less certainty than it appears to provide.
A voyage charter is often cleaner for one identified cargo because the owner prices and manages the voyage. A contract of affreightment can suit recurring volume when the cargo owner wants shipment capacity over time but does not need commercial control of one named vessel. The right structure follows the programme, not the terminology preferred at the start of the enquiry.
Time-charter forms and clauses
NYPE is the dominant general dry-cargo time-charter form. The 2015 edition provides a modern base for delivery, hire, employment, performance, off-hire and redelivery provisions, then the parties amend that base through the fixture recap and riders. Tanker and offshore trades use forms and clause sets developed for their own operating context.
The form name never completes the review. Read the boxes, recap, amendments and riders together. Our guides to standard charter party forms and the clauses that allocate money, time and risk separate those two tasks.
For technical background, HMRC's summary of shipping contracts and time charterparties and the UNCTAD time-charterparty synopsis provide useful primary reference points. The signed fixture remains the source for the actual allocation on any vessel.
Common questions
What is a time charter?
A time charter gives the charterer the commercial use of a vessel for an agreed period or trip. The owner retains possession and remains responsible for the master, crew, maintenance and vessel management. The charterer pays hire and directs lawful commercial employment within the charter-party limits.
Who pays for bunkers under a time charter?
The charterer normally supplies and pays for bunkers consumed while the vessel is on hire. Bunkers on board are usually valued at delivery and redelivery under the agreed clause. The owner remains responsible for the vessel meeting the contractual speed and consumption description, subject to the wording and qualifying conditions.
When does a vessel go off-hire?
Only when the event and its effect fall within the off-hire clause. A breakdown, crew deficiency or another named cause may stop hire for the resulting lost time, but the precise test, exclusions and calculation come from the charter party. Operational delay does not become off-hire merely because the vessel is not earning money for the charterer.
What is a trip time charter?
A trip time charter uses time-charter cost and employment allocation for a defined trip rather than a calendar period. The charterer pays daily hire and voyage costs during the trip, while the owner keeps possession and vessel-management responsibilities.
Can a charterer redeliver a vessel early?
The redelivery window and any permitted tolerance come from the charter party. Redelivery outside that range can create a claim, especially when the market has moved. The charterer should forecast the final voyage against the earliest and latest redelivery dates before giving the last employment order.
This guide describes general market practice and is not legal advice. The signed contract, charter party and transaction-specific advice take precedence.