Unix Timestamp Converter
9 toolsConvert between Unix timestamps and dates.
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Convert between Unix timestamps and human-readable dates. Ten-digit timestamps are usually seconds and thirteen-digit ones are milliseconds, and mixing them up is a common bug. A timestamp is an instant in UTC; a time zone only matters when you display it.
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How to use this tool
- 1Click the current timestamp to copy it.
- 2Paste a Unix timestamp to convert it to a date.
- 3Or pick a date and time to see its Unix timestamp.
Frequently asked questions
What is a Unix timestamp?
The number of seconds since January 1, 1970 00:00:00 UTC — a compact, timezone-independent way to represent a point in time.
Why does my 13-digit timestamp look wrong?
Some systems use milliseconds instead of seconds. This tool auto-detects timestamps longer than 10 digits as milliseconds.