A voyage charter gives the charterer a fixed period to load and discharge. Use less and the owner may owe despatch. Use more and the charterer owes demurrage. Between those two outcomes sits a calculation that is arithmetically simple and legally treacherous, and most disputes turn on which hours counted rather than on how the addition was done. The Laytime Definitions for Charter Parties 2013 define laytime as the period of time agreed between the parties during which the ow
