Time Converter
Move a value between Unix timestamps, ISO 8601, UTC, and your local time.
How it works
- 1 Pick a source format, or leave it on Auto.
- 2 Paste your timestamp or date. Every output updates as you type.
- 3 Copy any format with one click.
Built on web standards
Built with standard browser APIs — no third-party libraries.
Frequently asked
What does Auto-detect do? +
It tries an ISO or date string first, then falls back to reading a number. Numbers above 10^12 count as milliseconds, above 10^9 as seconds.
Which time zone is shown? +
ISO 8601 and the UTC string are both in UTC. The local string uses your device's time zone. Relative is measured against your clock right now.