—Unix time
Choose the unit. Never guess it.
Convert epoch seconds or milliseconds explicitly, then reverse a local or UTC civil time without digit-length guessing.
Seconds + millisecondsUTC + local labelsNo timezone lookup
Unix timestamp converter workspace
—Timestamp → Date
Unit is explicit
Input unit
- UTC
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- Local browser time
- —
- ISO 8601
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Date → Timestamp
Interpretation is explicit
Interpret entered date as
- Unix seconds
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- Unix milliseconds
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Quick feedback
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No unit guessing
A 13-digit value often means milliseconds, but heuristics can be wrong. BeanNest requires Seconds or Milliseconds explicitly before conversion.
Local means this browser
Local date interpretation uses the timezone and daylight-saving rules currently exposed by your browser. UTC interpretation uses the entered civil components as UTC.
Pre-1970 works too
Negative epoch values are supported within JavaScript's Date range. Unix seconds use mathematical floor, so an instant one millisecond before 1970 belongs to second -1.