Dev Tools
Client-sidefiles never upload

Unix time & timezone converter

Auto-detects seconds / milliseconds / ISO 8601. Pick any timezone for in-place display; day-boundary cases are flagged.

detected as seconds
Unix seconds
1782343777
Unix milliseconds
1782343777000
ISO 8601 (UTC)
2026-06-24T23:29:37.000Z
2026-06-25 07:29:37
›How to use
  1. Paste numbers or an ISO string — the tool auto-detects seconds, ms, or ISO 8601.
  2. Hit Now to drop in the current time.
  3. Pick any timezone below to see the local time live.
  4. If the time falls near midnight (23:00–01:00) a yellow warning appears — useful for cross-day / month-end testing.
Tips
  • Timezone list comes from Intl.supportedValuesOf('timeZone'), which Node 22+ and Chrome 99+ both support fully.

Related tools