Unix Timestamp Converter
Convert a Unix timestamp to a human-readable date and time, or a date to its corresponding Unix epoch in seconds or milliseconds. Free, unlimited, and runs entirely in your browser.
How to use
- 1Choose the mode: Timestamp to Date or Date to Timestamp.
- 2Enter the Unix timestamp (seconds or milliseconds) or a date.
- 3See the result in UTC, local time, and ISO 8601 format.
- 4Use the Now button to start from the current moment.
What it's for
- Debug timestamps in server and application logs.
- Convert API and database timestamps to readable dates.
- Check expiry dates of JWT tokens.
- Generate Unix timestamps for scripts and automation.
Frequently asked questions
What is a Unix timestamp?
A Unix timestamp (or epoch) is a number representing how many seconds (or milliseconds) have elapsed since January 1, 1970, at 00:00:00 UTC.
Is it free?
Yes. It is completely free, no sign-up required, and has no usage limits.
Is my data stored?
No. Everything is computed locally in your browser; nothing is sent to a server.
Does it support negative timestamps?
Yes. Negative timestamps represent dates before 1970 (before the Unix epoch).
Seconds vs milliseconds?
Second-based timestamps typically have 10 digits; millisecond-based have 13. The tool detects the unit automatically.