Clock · Date & Time
Unix Timestamp Converter
Convert epoch seconds or milliseconds to readable dates — and the other way around.
10 digits = seconds, 13 = milliseconds
Seconds
1784595663
Milliseconds
1784595663000
UTC
2026-07-21T01:01:03.000Z
Local
Tue Jul 21 2026 01:01:03 GMT+0000 (Coordinated Universal Time)
How to use
- Paste a Unix timestamp or pick a date/time.
- See UTC and local readouts.
- Copy seconds or milliseconds as needed.
Features
- Seconds and milliseconds
- UTC and local time
- Now button
- Runs in your browser. Dates stay on your device.
Privacy & how it works
This date and time tool runs in your browser. Dates and times you enter are not uploaded to ToolsWeb servers for this tool. Privacy Policy.
FAQ
Is Unix time timezone-aware?expand_more
Unix time is UTC-based. Local display uses your browser timezone.
Is this calculator free?expand_more
Yes. No signup required.
Are my numbers uploaded?expand_more
No. Calculations run in your browser. Inputs are not sent to ToolsWeb servers for this tool.
Is this professional advice?expand_more
No. Results are estimates for general information. See our Disclaimer for health, finance, and related tools.