Unix Timestamp Converter — Epoch to Date
Convert Unix timestamps to dates and back, auto-detect seconds vs milliseconds, and show local, UTC and ISO 8601 formats.
Processed locally in your browser. Nothing is uploaded.
How to use
- Paste a timestamp or pick a date and time.
- Confirm seconds or milliseconds and the time zone.
- Copy the format you need.
Example and rules
Example: 1767225600 equals 2026-01-01 00:00:00 UTC.
- 10 digits are seconds and 13 are milliseconds; you can override this.
- Shows local time, UTC and common time zones.
- The current timestamp updates live.
Frequently asked questions
What is a Unix timestamp?
Seconds or milliseconds since 1970-01-01 00:00:00 UTC.
Why is my time off by hours?
The same instant shows differently in each time zone.
Are negative values supported?
Yes, for dates before 1970.