Nov 04, 2015 · I want to make a sheet for my import costing where I have to figure out the port & shipping line demurrage. ... set the formula for port demurrage, I need it so badly ... - Collect time-sheets, statement of facts, notes-of-protest, pumping rate, pressure documents, etc. as detailed on the seven stages process we apply for the laytime calculation: Read relevant clauses in the charter party Calculate demurrage, detention and port storage laytime charges. Online calculator for demurrage and storage charges for containers, detention calculator. Calculating Laytime (e-book) A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Laytime Proration Clause In early 2017, the LEAP Public Dock Standing Committee identified and discussed a recurring matter of confusion and disagreement in the market: the scenario in which a single vessel or barge loads (or unloads) a cargo at a shared berth for two or more companies in the same operation.