Laytime Used

Laytime used = arrival to completion minus excepted periods. Compare against CP-allowed laytime to determine demurrage/despatch.

CharteringLaytime

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{Used} = \text{Total} - \text{Turn time} - \text{Excepted}

Symbol	Meaning	Unit
$Total$	Clock time from NOR to completion	h
$Turn time$	Excluded period per CP (typ 6 h)	h
$Excepted$	SHEX, rain, weather suspension	h

Source: BIMCO - Voylayrules 93

Laytime used = arrival to completion minus excepted periods.