Epoch converter for the timestamps in your logs and JWTs
Paste `1718000000` or `1718000000000`; see UTC and local. Or pick a date → get epoch. Live “now” readout optional.
chars: 10
When to use
Debugging exp claims, reading API logs, or converting spreadsheet epochs.
Examples
How it works
Length heuristic (10 ≈ seconds, 13 ≈ ms) with manual override. Formats via Date in UTC/local.
Common pitfalls
- Seconds vs milliseconds mixups are the #1 bug.
- Timezone display ≠ stored instant.
- JWT exp is usually seconds.
How this differs
Time conversion only. Cron Explainer describes schedules. UUID v7 embeds time but isn’t a converter.
FAQ
Seconds or ms?
Auto-detect; override if wrong.
Timezones?
Show UTC + browser local.
Leap seconds?
Unix time ignores them like most systems.
Related?
JWT Decode for `exp`.
Related tools
Runs in your browser. Nothing is uploaded. Not a security product —hashes and JWT decode are for debugging, not password storage or auth advice.