Unix Timestamp Converter
Convert Unix timestamps to human dates — and dates back to timestamps.
The Unix Timestamp Converter translates epoch timestamps into readable dates in both UTC and your local timezone, and converts calendar dates back into timestamps for APIs and databases. It auto-detects seconds versus milliseconds, and the Now button fills in the current moment instantly. Essential for debugging logs, scheduling systems and working with time-based APIs.
How to use the Unix Timestamp Converter
- Enter a Unix timestamp and click Timestamp to Date, or pick a date and click Date to Timestamp.
- Use Now to fill in the current moment and convert it instantly.
- Read the UTC, local and ISO 8601 results, then use Clear to reset.
Unix Timestamp Converter — FAQs
Is the timestamp converter free?
Yes, completely free with no signup and no limits. Convert as many timestamps and dates as you need, any time, directly in your browser, which makes it great for log analysis and debugging time-related API issues.
Seconds or milliseconds — which does it expect?
Both. The tool auto-detects the unit: values around 1.7 billion are treated as seconds, while values in the trillions are treated as milliseconds. The result panel always shows both the seconds and milliseconds forms for clarity.
What timezones are shown?
Every conversion shows the UTC time, your browser's local time and the ISO 8601 representation. That covers server logs in UTC, local scheduling needs and API payloads — all in one convenient view without switching tools.
Is my input uploaded anywhere?
No. All conversion uses your browser's built-in Date object locally, so your timestamps and dates never leave your device. Nothing is uploaded, logged, or stored on any server whatsoever, keeping your data completely private always.