Timestamp Converter

Server logs print 1726848000. APIs return 2024-09-20T14:00:00Z. A developer in Berlin and a teammate in New York need the same moment expressed in local time.

Seconds or milliseconds both work

Paste a Unix timestamp and the tool guesses whether it is in seconds or milliseconds. The local time and UTC time appear together so you can coordinate across zones.

You can also type an ISO date and see its Unix seconds.

UTC is the single source of truth

Local time changes with daylight saving. Unix seconds stay the same everywhere. When in doubt, trust the UTC output for scheduling.

Ancient timestamps may drift on older browsers

Dates before 1970 or far past 2038 can behave oddly in some environments. Use this for typical modern ranges.