Unix Timestamp Converter
Convert between Unix epoch seconds and readable dates, in both directions, with UTC and ISO output.
How to use it
- Enter a Unix timestamp In seconds since 1 January 1970 UTC. Tap "Now" for the current time.
- Or pick a date and time Use the date-time picker to convert the other way.
- Read the result See the ISO 8601 and UTC representations.
Examples
| 1700000000 | 2023-11-14T22:13:20Z |
|---|---|
| 0 | 1970-01-01T00:00:00Z |
About this tool
A Unix timestamp is a compact way to represent a moment in time as a single number — the count of seconds since the start of 1970 in UTC. It is the standard way computers store and exchange times.
This converter translates timestamps into readable ISO 8601 and UTC dates, and converts a date you pick back into a timestamp. Everything runs in your browser.
Frequently asked questions
What is a Unix timestamp?
It is the number of seconds that have elapsed since 1 January 1970 at 00:00 UTC, known as the Unix epoch. It is widely used in software.
Seconds or milliseconds?
This tool uses seconds, the classic Unix convention. Many programming languages use milliseconds, which are 1000× larger.
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Updated June 12, 2026