Epoch Converter
A free Epoch Converter: turn an epoch value into a readable date, or a date back into a timestamp, in seconds or milliseconds. The current time ticks live and nothing is uploaded.
How to use the Epoch Converter
- Paste a timestamp — the unit (seconds or milliseconds) is auto-detected.
- Read the local, UTC and ISO 8601 result.
- Or pick a date to get its epoch value back.
About the Epoch Converter
Epoch time counts the seconds since 00:00:00 UTC on 1 January 1970, giving a single timezone-free number that databases, logs and APIs rely on. Some systems use milliseconds (a 13-digit value) instead of seconds (10 digits); this Epoch Converter detects which you have entered automatically.
Each value is shown in your local timezone, in UTC and as an ISO 8601 string, so there is never ambiguity about which zone a time refers to. It all runs on your device’s clock in the browser — nothing is sent to a server.
Frequently asked questions
Seconds or milliseconds?
The Epoch Converter auto-detects whether you pasted seconds (10 digits) or milliseconds (13 digits), and you can force either.
What is epoch time?
Epoch (Unix) time is the number of seconds since 1 January 1970 UTC — a compact, timezone-independent way to represent a moment in time.
Does it show UTC and local time?
Yes — every value is shown in your browser’s local timezone, in UTC, and as ISO 8601.
Is anything uploaded?
No. The Epoch Converter runs entirely in your browser using your device’s clock, so nothing you enter is sent anywhere.