⚓ Days at Sea
For seafarers on rotation

Know your sea time,
to the day.

Track your rotation, contract, and pay — built for crew on day-rate or flat-salary contracts. Set your ratio once, log as you go, and always know where your balance stands.

A 3:1 rotation, one cycle
21 days worked 7 days off
The logbook

Everything a contract needs tracked

Set it up once at the start of your contract, then log a few minutes at a time.

Rotation & contract type

2:1, 3:1, 2:2, 4:1, or a custom ratio — plus day-rate or flat-salary pay structure, set once and applied automatically.

Calendar or board view

Log worked days, travel days, and days off however you think about your rotation — flip between a calendar and a board.

Pay & travel-day rules

Configure whether travel counts as worked time and whether it accrues days off, then watch running balances update themselves.

Backup, anytime

Export your full log as a JSON file whenever you want — to move phones, keep a personal record, or just sleep easy.

On board, not in the cloud

Your log stays yours

No account, no ads, no tracking

Days at Sea makes no network requests and includes no analytics or third-party SDKs. Every entry is stored locally on your device. If you export a backup, that file is created and shared entirely by you — nothing is ever sent to us, because there's no server to send it to.