How Port Window calculates your result
Build a port-day plan around your all-aboard deadline, transport buffers, and overlapping ship calls. Keep every time and capacity assumption visible.
Start with evidence, not a score
Enter arrival and all-aboard timestamps with explicit UTC offsets. Display the resulting plan in the selected port timezone. Subtract disembarkation, transport, activity, tender, and contingency time before judging whether the day fits.
Read the assumptions
Peak scheduled capacity counts simultaneous overlapping calls, not every ship scheduled at any time that day. Verify ship time, port time, all-aboard instructions, and live transport conditions directly. This tool does not guarantee a safe return.
Use a reproducible workflow
Enter your own measurements or import records using the published CSV schema. Save a local scenario before making a change, compare the result, and export a copy with the assumptions intact. Example inputs are not a verified catalog or a live data feed. The source references explain the underlying terminology; they do not independently verify information you enter.