Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back, in local time and UTC.
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Timestamp → date
| Local time | — |
|---|---|
| UTC | — |
| ISO 8601 | — |
Date → timestamp
| Seconds | — |
|---|---|
| Milliseconds | — |
How to use
- Enter a Unix timestamp (seconds or milliseconds) to get the date.
- Or pick a date and time to get its timestamp.
- View the result in both your local time zone and UTC.
Frequently asked questions
What is a Unix timestamp?
The number of seconds that have elapsed since January 1, 1970 at 00:00:00 UTC — a compact, time-zone-free way to store an instant in time.
Seconds or milliseconds?
Unix time is traditionally in seconds; JavaScript and many APIs use milliseconds. The tool detects and shows both.
🔒 This tool runs entirely in your browser. Nothing you enter is uploaded, logged, or stored.
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