Unix Timestamp Converter
Unix Timestamp Converter: free, accurate and easy to use. Works in your browser with no sign-up.
How to use
Convert Unix timestamps to human-readable dates and back. Paste a timestamp in seconds or milliseconds to see it in UTC, your local time and ISO 8601 format, or pick a date to get its timestamp. The current timestamp updates live. Developers use Unix time in logs, databases and APIs.
- Enter a date, time or value.
- Results update instantly.
- Copy the result you need.
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Frequently asked questions
What is a Unix timestamp?
The number of seconds that have passed since 1 January 1970 at 00:00:00 UTC, not counting leap seconds.
How do I know if it is seconds or milliseconds?
Timestamps with 13 digits are normally milliseconds and those with 10 digits are seconds. The tool detects this automatically.
Is it free?
Yes. All tools are free, with no sign-up and no limits.
Is my data stored or sent?
No. Everything runs in your browser. A few tools remember your choices on this device only.
Are the results accurate?
Calculations use your browser’s built-in date and time zone data and standard formulas. For legal or religious dates, confirm with the official authority.