Epoch Converter
Convert Unix epoch timestamps to human-readable dates and vice versa. Live clock, presets, and history.
Result
History
About Epoch Converter
Convert a Unix timestamp into a readable date, or go the other way from a date-and-time picker. Paste a value and it detects whether you gave seconds or milliseconds, then shows local time, UTC, ISO 8601, the weekday and a relative reading such as "3 days ago", each with its own copy button. A live counter of the current epoch runs at the top, and presets jump to landmarks like Unix zero and the 2,147,483,647 32-bit rollover. The conversion happens in your browser.
Use Cases
How to use
With the Epoch to Date tab selected, type a Unix timestamp into the Epoch Timestamp box; 10-digit seconds and 13-digit milliseconds are both recognised.
Or press Use Current to insert the live counter shown under Current Epoch, which ticks once a second at the top of the page.
Try a preset button such as Y2K, iPhone (2007), Unix 0, Max 32-bit or 2030 to jump to a well-known moment.
Switch to the Date to Epoch tab and choose a moment in the date and time picker to convert in the opposite direction.
Read the Result rows for Local Time, UTC, ISO 8601, Relative, Day of Week and the timestamp in seconds and milliseconds.
Click the clipboard icon on any row to copy that single value; recent conversions stay under History until you press Clear.
Pro Tips
- Paste your content directly — the Epoch Converter detects common input patterns and applies sensible defaults automatically.
- Use keyboard shortcuts (Ctrl/Cmd+A to select all, Ctrl/Cmd+C to copy) to speed up your workflow inside the Epoch Converter.
- For very large inputs, break them into chunks — most browser tabs can handle megabytes of text, but parsing huge payloads may freeze the UI briefly.
- The Epoch Converter does not log or store your input. If you need history, copy important outputs to a local file or note app.
- Combine the Epoch Converter with other tools on this site (formatters, converters, encoders) to build complete data pipelines without leaving your browser.
Frequently Asked Questions
Yes, fully free with no signup, no API key, no watermarks, and no usage limits.
No. The Epoch Converter runs entirely client-side in your browser. Your input never touches our servers.
There is no hard limit, but expect slowdowns on inputs larger than a few megabytes, depending on your device's memory.
Yes. Outputs generated with the Epoch Converter are yours to use freely in any personal or commercial project.
Most of the logic runs in client-side JavaScript, so after the initial load you can often keep working without a network connection.
None. Because the Epoch Converter runs in your browser, you can process as many inputs as your hardware allows without API keys or throttling.