Timestamp Converter
Convert Unix epoch time to dates and back.
Convert Unix epoch timestamps to human-readable dates and back, in seconds or milliseconds. It auto-detects the unit and shows local, UTC, and ISO 8601 formats.
Runs entirely in your browser — nothing is uploaded.
How to use the timestamp converter
- 1Enter a Unix timestamp, or click Now for the current time.
- 2Read the local, UTC, and ISO 8601 results.
- 3Or pick a date and time to get its timestamp.
Frequently asked questions
Does it support milliseconds?
Yes — timestamps with 12 or more digits are treated as milliseconds; shorter values are treated as seconds.
What is Unix epoch time?
It's the number of seconds since January 1, 1970 (UTC) — a common way to store dates and times in software.