Unix Timestamp Converter
Convert between Unix timestamps and human dates.
Current Unix time
—
Private by design. This tool runs entirely in your browser. Your input is processed on your own device and is not uploaded by DO101.
About the Unix Timestamp Converter
Turn a Unix timestamp into a readable date, or a date into a timestamp. Seconds and milliseconds are both supported and auto-detected, with UTC and local time shown side by side.
How to use it
- 1Paste a timestamp, or pick a date.
- 2Seconds versus milliseconds is detected automatically.
- 3Copy the format you need.
What you get
- Auto-detects seconds or milliseconds
- UTC, local time and ISO 8601 output
- Relative time ("3 hours ago")
- Live current timestamp
- Runs offline
Frequently asked questions
How do I tell seconds from milliseconds?
A current timestamp in seconds has 10 digits; in milliseconds it has 13. DO101 checks the magnitude and tells you which it assumed.
What is the Unix epoch?
00:00:00 UTC on 1 January 1970. A Unix timestamp counts the seconds elapsed since that moment, ignoring leap seconds.
Keep going
People who use this tool usually reach for these next.
Read the header and payload of a JSON Web Token.
Beautify, minify and validate JSON with error positions.
Work out an exact age in years, months and days.
Generate v4 UUIDs in bulk with a cryptographic source.