Demurrage Calculation

Temporal Boundary

Daily rates apply from the moment the free time concludes until the container leaves the facility. Precise timing dictates the total duration of the delay, which begins immediately after the last allowed hour passes. Operators measure this duration by comparing the physical gate exit timestamp against the original deadline set for pick-up.

High volume shipments often face steeper daily escalations as the period extends, preventing long-term storage in active transport zones.

Operational Variance

Local terminal policies govern how individual companies account for weekends, national holidays, and strike actions during the active window. Differences in these regional agreements often complicate the final invoice generation. A carrier might exclude non-working days from the tally, while a private terminal operator includes every calendar day without exception.

Variations in tariff structures reflect the underlying pressure on available space at the specific port or inland depot.

Contractual Logic

Freight agreements define the specific cost per container size for every twenty-four hour block of excess occupancy. This structure creates a predictable expense model for logistics managers when delays occur at the import gate. Standardized terms within the bill of lading establish the legal basis for these charges, binding the consignee to the provided fee schedule regardless of the cause for the delay.

Statutory limits on these fees remain rare in commercial maritime law, leaving the final amount to the private contract between the merchant and the carrier.