Unix Timestamp Converter
Convert an epoch in seconds or milliseconds to UTC ISO time, or parse an ISO timestamp back into epoch values.
About this tool
How it works
- Check both epoch units and the UTC date before storing or sharing time values.
- Output dates use UTC rather than local time. Automatic detection of seconds versus milliseconds can be ambiguous for older dates.
Enter Unix seconds, Unix milliseconds, or a timezone-qualified ISO 8601 date such as 2026-10-12T08:00:00+07:00. Choose the unit if it is known.
Example: 1760000000
Processed locally in your browser; nothing is uploaded.