Date & Time utility
Epoch Time Converter
Convert a date and time into Unix epoch seconds and milliseconds.
● This tool runs entirely in your browser. Your input is never uploaded to our servers.
Output
Your result will appear here…
How to use Epoch Time Converter
- Enter a date string; include Z or an offset to make its timezone explicit.
- Select Convert to get epoch seconds and milliseconds.
- Copy the result for use in code or logs.
Example
Input:
2025-01-01T00:00:00Z
Output:
Epoch seconds: 1735689600 Epoch milliseconds: 1735689600000
Use cases
- Create timestamps for API requests.
- Compare event times in logs.
- Prepare date values for databases.
About this tool
Convert a date and time into Unix epoch seconds and milliseconds. Processing happens locally in your browser, so your input is not sent to a server or included in analytics.
Frequently asked questions
What does epoch time mean?
It is the elapsed time since 1970-01-01 00:00:00 UTC.
Should I include a timezone?
Yes. Include Z or an explicit offset to avoid interpreting a timezone-less date in your device's local timezone.
Is the input sent to a server?
No. Date conversion is performed locally in your browser.