Unix Timestamp Converter
Turn a Unix timestamp from a log, database or API into a readable date in UTC and your local time zone — or convert a date into a timestamp. Seconds, milliseconds and microseconds are detected automatically.
Runs in your browser
How to use
- Paste a timestamp, or pick a date.
- Read the ISO 8601, UTC, local and relative values.
- Copy the format you need.
How it works
A Unix timestamp counts seconds since 1 January 1970 00:00:00 UTC, ignoring leap seconds. The tool guesses the unit from the number's size: values below 10¹¹ are seconds, below 10¹⁴ milliseconds (JavaScript, Java), and larger values microseconds.
Local time uses your device's time zone and daylight-saving rules.
Examples
- 1700000000
- = 14 November 2023, 22:13:20 UTC.
Common uses
- Reading timestamps in logs and databases
- Debugging token expiry times
- Scheduling with cron and APIs
Privacy & security
This tool runs entirely in your browser. Your files and text are never uploaded to our servers — processing happens on your device and results are created locally. How each tool handles files
Frequently asked questions
What is the Year 2038 problem?
Systems storing timestamps as signed 32-bit integers overflow on 19 January 2038. Modern systems use 64-bit values.
Does a timestamp depend on the time zone?
No. A timestamp is the same everywhere; only its display in local time changes.
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