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Convert timestamp

Paste a timestamp or a date. We work out on our own whether it is seconds, milliseconds or microseconds — and tell you which we used, instead of guessing silently.

Your text stays on your device: nothing is uploaded

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Result

Paste something on the left: the result appears as you type.

How it works

A Unix timestamp counts the time elapsed since midnight on 1 January 1970. The trouble is the unit: the standard says seconds, JavaScript uses milliseconds, some databases use microseconds, and the number alone does not say which. Being wrong by a factor of a thousand lands you in 1970 or in the year 55000, and you do not notice until production. Here we look at the order of magnitude — ten digits is seconds, thirteen is milliseconds, sixteen is microseconds — and, more importantly, we tell you which reading we picked, so you spot it immediately if it is wrong. It works the other way too: write a date in a recognisable format and get the number. Local time uses your computer’s timezone, UTC does not: if the two differ, that is the timezone.

What you paste is never uploaded. Anywhere.

Not to a server of ours, not to a third party, never. The text you type stays in your browser’s memory: it is read, processed and shown here, and you copy it. There is no path that takes it elsewhere, because there is no server to send it to. You can paste something confidential.

  • Processed locallyThe computation happens on this page, using the browser’s own engine: no request goes out while you type.
  • Nothing to upload, nothing to wait forOther services send your file to a server and then send it back to you. Here the file never leaves: there is no upload to wait for.
  • No accountNo sign-up, no email, no daily limits to get around by paying.
  • Nothing to deleteOthers promise to delete what you paste after an hour. We have nothing to delete: it never reached us.
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