Unix Timestamp Converter
Convert Unix timestamps to readable dates and back. Shows local time, UTC and ISO 8601, handles both seconds and milliseconds, with a live current-time display.
Current time
Timestamp → Date
Date → Timestamp
How to use
- Paste a timestamp into the converter, or pick a date and time in the date picker.
- Read the converted result in ISO 8601, UTC and your local timezone.
- Use the "Now" buttons to grab the current timestamp or current date.
What is Unix Timestamp Converter?
A Unix timestamp is the number of seconds elapsed since 1970-01-01 00:00:00 UTC (the "epoch"). It is how computers store points in time, but it is unreadable for humans.
This tool converts timestamps to local time, UTC and ISO 8601 strings, and converts dates back to both second and millisecond timestamps. Seconds vs milliseconds is detected automatically, and the current timestamp updates live.
Frequently asked questions
Do I have seconds or milliseconds?
Current timestamps have 10 digits in seconds and 13 in milliseconds (JavaScript uses milliseconds). The tool detects this automatically by magnitude.
Why does the same timestamp show different times?
A timestamp is an absolute moment; the displayed clock time depends on your device timezone. UTC is the timezone-independent reference.
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