Unix Timestamp Converter
Convert Unix timestamps to readable dates, or turn a date and time into seconds and milliseconds. Local time and UTC are shown side by side.
Debug dates without guessing the timezone
Timestamps show up everywhere: logs, API responses, databases, analytics exports, and webhook payloads. The hard part is remembering whether the value is seconds or milliseconds, and whether the date you are seeing is local time or UTC.
This converter makes both sides visible at once so you can catch off-by-hours timezone mistakes before they turn into production bugs.
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp is the number of seconds since January 1, 1970 at 00:00:00 UTC. Some systems use milliseconds instead of seconds.
Does this use my local timezone?
The tool shows both your local time and UTC so you can compare what a timestamp means in each context.
Can I convert milliseconds too?
Yes. The converter detects long millisecond timestamps and also displays both seconds and milliseconds for any date you enter.
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