Convert between Unix timestamps and human-readable dates.
Unix Timestamp (seconds)
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ISO 8601
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Local (—)
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Auto-detects seconds vs milliseconds
Convert between Unix epoch timestamps (seconds or milliseconds) and human-readable dates in any timezone. Useful for debugging APIs, log files, and anywhere Unix time shows up.
Enter a timestamp or date
Paste an epoch timestamp, or pick a date from the picker.
Choose timezone
Switch between UTC and your local timezone. Both are shown side by side.
Unix time is traditionally in seconds, but JavaScript's Date.now() returns milliseconds. The tool auto-detects based on magnitude: values ≥ 10^12 are treated as milliseconds.
Yes. You can view timestamps in UTC or your local timezone. The conversion is computed client-side.