Name the charging party and clock first
“Demurrage”, “detention” and “storage” are often used as if they describe one invoice. They can represent different services, different charging parties and different start or end events.
Before calculating anything, collect four facts:
- Who issued the charge: shipping line, terminal, depot, forwarder or road carrier?
- Which booking, contract or tariff applies, and on what effective date?
- What event starts and ends free time?
- Are days calendar days, working days or subject to stated holiday treatment?
This distinction matters in Australia because a shipping line may combine container demurrage and detention into one clock while the terminal separately charges storage. Truck waiting-time detention is another service again and is outside this container-clock guide.
How combined container D&D can work in Australia
Maersk's current Australia import page, rechecked 24 August 2026, provides one concrete example. It defines combined demurrage and detention as compensation when the merchant holds the carrier's container beyond agreed free time, inside and outside the terminal. Its illustrated import clock begins when the laden container is discharged and ends when the empty is returned to the carrier's agent.
That is evidence of Maersk's stated process, not an industry-wide rule. OOCL publishes different Australian calculation wording. The applicable booking and effective tariff control the actual container.
Do not copy a free-time allowance from another carrier, customer, port or shipment. Confirm in writing:
- container number and type;
- discharge and availability events;
- last free day;
- daily bands and tax treatment;
- public-holiday rule;
- empty-return location; and
- whether a spot or negotiated contract changes the published schedule.
Why terminal storage can run separately
The same Maersk page distinguishes terminal storage from combined D&D. Its example starts storage at discharge and ends it when the laden container gates out, with the port operator charging storage directly. OOCL similarly directs customers to terminal storage arrangements.
The ACCC has described the Australian structure as shipping lines typically charging combined demurrage/detention while stevedores separately charge storage. That means one delayed pickup can expose an importer to two clocks:
``text carrier container clock: discharge → empty return terminal storage clock: discharge → laden gate-out ``
The events can share a start but have different ends, free periods and invoices. Paying one does not prove the other has stopped.
Build the arrival-to-empty-return timeline
Create one timestamp register for every container:
| Event | Evidence to retain | Why it matters |
|---|---|---|
| Vessel discharge | Carrier/terminal status | Possible clock start under the applicable tariff |
| Container available | Terminal status and slot history | Shows when collection was operationally possible |
| Customs authority to deal | Broker/ABF message | Separates customs release from other holds |
| Biosecurity release or direction | DAFF/broker message | Records inspection, treatment or information status |
| Delivery-order prerequisites complete | Surrender/payment/task evidence | Shows whether carrier release conditions were met |
| Pickup slot requested/offered | Terminal booking evidence | Documents access attempts |
| Laden gate-out | Terminal event | Common storage end event in cited carrier example |
| Delivery and unpack | POD/site record | Explains time outside terminal |
| Empty-return depot confirmed | Carrier instruction | Prevents a failed dehire trip |
| Empty gate-in | Depot receipt/EIR | Common combined D&D end event in cited carrier example |
Keep screenshots or exported status records with timestamps. A later assertion that the box was unavailable is much stronger when supported by the terminal event, attempted booking and contemporaneous escalation.
Release events that consume effective free time
Customs and biosecurity
ABF customs release and DAFF biosecurity release are separate controls. DAFF may clear from documents or direct inspection, treatment, isolation or a hold pending information. Complete, accurate documents can reduce the chance that goods need to be opened, but no importer can assume release timing.
A border hold does not automatically suspend a carrier or terminal clock. Check the tariff and request relief promptly with evidence. ABF Customs Notice 2023/01 describes a limited additional-storage arrangement for an FCL returned from an ABF Cargo Examination Facility with less than 24 hours of free terminal storage remaining. The notice also says importers must provide for storage, demurrage and detention exposure. Do not generalise that FCL arrangement to another authority, cargo type, terminal or delay.
Delivery order, payment and terminal access
Carrier release may depend on bill-of-lading surrender and payment tasks. Terminal pickup may then require an available slot and a transport operator able to meet it. Track each prerequisite independently. “Customs cleared” does not mean the carrier has released the delivery order, and an issued delivery order does not prove a terminal slot was available.
Delivery, unpack and dehire
The container clock can continue after gate-out until empty return under combined arrangements. Before pickup, book the delivery site, labour or forklift, unpack window and dehire transport. Confirm the designated empty-return facility close to the return date because instructions can change.
Upstream, a container loading check in China can preserve seal, packing and dispatch evidence. It does not replace the Australian arrival tracker.
Prevent charges before the vessel arrives
Use a backwards plan:
- obtain the arrival notice, carrier tariff and last-free-day method;
- pre-lodge complete import and biosecurity documents through the licensed broker;
- resolve bill-of-lading surrender, freight and destination payments;
- reserve transport, delivery access, unpack labour and empty return;
- confirm who watches terminal availability and who may approve premium transport;
- create escalation contacts for broker, carrier, forwarder, terminal and transporter; and
- set alerts before each last free day, not on it.
The China freight-quote article gives broader quote context, while the Incoterms guide helps identify contractual responsibility. Neither overrides the carrier or terminal tariff.
Build an evidence-backed extension or dispute
If delay threatens free time, ask for an extension or waiver before expiry where possible. State:
- container and booking;
- applicable tariff and your calculated last free day;
- the blocking event and timestamp;
- steps taken to clear or collect;
- evidence of unavailability or third-party instruction;
- requested relief and period; and
- operational plan once access is restored.
Do not assume the request is accepted until confirmation is received. Preserve rejection reasons. If an invoice arrives, reconcile the charged days to the tariff, free-time band, start/end events and tax treatment. Separate undisputed from disputed lines and obtain customs, legal or commercial advice before withholding a release-critical payment.
The ACCC monitors container stevedoring but says it does not regulate prices in the container-freight industry. Do not present an ACCC complaint as a guaranteed pricing remedy.
Clock tracker and escalation checklist
The practical control is simple, even when the contracts are not:
- one owner watches each container from discharge to empty return;
- every clock has a named charging party and tariff;
- every release and access event has timestamped evidence;
- every last free day has an earlier escalation alert;
- delivery, unpack and dehire are booked as one chain; and
- every invoice is reconciled to events rather than accepted as a single “port charge”.
The broad hidden-traps guide explains why late documents and unclear responsibilities create import risk. This tracker turns that warning into a container-level operating record.
There is no universal free-time number or automatic waiver. The defensible answer is the current tariff plus a complete event timeline.
Sources
- Maersk: Australia import information
- OOCL: Australia demurrage and detention free time and charges
- Australian Competition and Consumer Commission: Container stevedoring monitoring report 2021–22
- Australian Competition and Consumer Commission: Container stevedoring monitoring
- Department of Agriculture, Fisheries and Forestry: Clearance and inspection of goods
- Australian Border Force: Sea Cargo Reporting Requirements and Inspection Arrangements
Sources retrieved or rechecked 24 August 2026 Australia/Sydney. This article provides general operational information, not a tariff interpretation, waiver entitlement, dispute outcome or legal advice. The actual booking, contract and effective carrier, terminal and depot tariffs control; obtain qualified advice before taking a release-critical payment or dispute step.






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