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Seafarer Contract & Sign-Off Calculator

Kailan ka uuwi? Enter your embark date and contract length to see your sign-off window, how many days you've served, how many are left, and download a calendar reminder so you never lose track of your relief.

Everything is computed in your browser. Nothing you type is saved or sent to any server.

Enter your embark date and contract length to see your sign-off window.

Frequently asked questions

How do I calculate my seafarer sign-off date?

Add your contract length (in months) to your embark/join date. A 6-month contract that starts on 1 March ends around 1 September. This tool does the math and shows the earliest and latest dates allowing for the usual ±1 month tolerance.

What is the ± tolerance in a seafarer contract?

Most POEA/DMW-approved contracts allow the sign-off to move by about one month either way depending on the crew change port and relief availability, so a 6-month contract is often written as 6 months ±1.

Is my information saved?

No. Every calculation runs entirely in your browser. Nothing you type is sent to a server or stored, and the calendar reminder file is generated on your device.

More seafarer tools

This calculator is an informational aid based on your contract's stated duration. Your actual sign-off depends on crew-change scheduling and your principal's instructions — always confirm with your manning agency.