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Unix Timestamp Converter

Convert Unix timestamps to human dates and back, in seconds or milliseconds.

To convert a Unix timestamp, paste the number and the human-readable date appears in UTC, your local timezone and ISO 8601 form. Paste a date instead and the timestamp is produced. Seconds and milliseconds are distinguished automatically by magnitude.

Runs in your browser
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Seconds or milliseconds — how do I tell?

A current timestamp in seconds is about 10 digits; in milliseconds it is 13. This tool switches automatically above 100 billion, which covers every date from 1973 onward.

What is the year 2038 problem?

Systems storing Unix time in a signed 32-bit integer overflow on 19 January 2038. Modern platforms use 64-bit time, which is safe for roughly 292 billion years.

How to use the unix timestamp converter

  1. 1Enter or paste your timestamp or date.
  2. 2Choose the interpret as.
  3. 3The result appears immediately — copy or download it.

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