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Free Unix timestamp converter. Convert epoch seconds or milliseconds to human dates, or convert a date/time to Unix time.
10-digit ≈ seconds, 13-digit ≈ milliseconds
0 → 1970-01-01 UTC1710000000 → 2024-03-09 UTC areaHandy for logs, APIs, JWT exp claims, and database timestamps.
The number of seconds (or milliseconds) since 1970-01-01T00:00:00Z, also called epoch time.
10-digit values are usually seconds; 13-digit values are usually milliseconds. This tool auto-detects by length.
Human-readable local time uses your browser timezone; ISO output is UTC.
Yes. Use the local date/time fields and convert to seconds or milliseconds.