Format guide
Unix timestamp
Unix epoch seconds
A Unix timestamp is the number of seconds (or milliseconds) since 1970-01-01T00:00:00 UTC, the moment the original Unix systems counted from. Compact, language-neutral, and never affected by timezone or DST changes. Logged by every server log line, returned by every API time field, stored in every analytics warehouse. Auto-detection is straightforward: 10-digit values are seconds, 13-digit are milliseconds.
How to open a Unix timestamp file
Any tool that handles numbers. To make readable: every programming language has a function (`Date.now()` in JS, `time.time()` in Python, `date -d @<ts>` on Linux/Mac).
Primary use
Compact, timezone-neutral timestamp storage in logs and APIs.
Convert other formats to Unix timestamp
Convert Unix timestamp to other formats
Looking for something else? Browse the full list of 192 converters.