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Unix Timestamp Converter

Convert a Unix timestamp to a readable date, or a date to a timestamp.

Local time

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UTC time

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ISO 8601

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RFC 2822

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Milliseconds

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Day of week

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Relative to now

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A Unix timestamp counts whole seconds since 1 January 1970 UTC, and it ignores time zones entirely, which is why it is so widely used in software. Most timestamps you see online are 10 digits; anything 13 digits is already in milliseconds.

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What Is Unix Timestamp Converter?

The Unix Timestamp Converter converts a Unix epoch timestamp to a readable date, and a date and time back to a timestamp. It shows local time, UTC, ISO 8601, RFC 2822, milliseconds, and how long ago or how far ahead the moment is.

Who Uses the Unix Timestamp Converter?

Developers use it to read a timestamp out of a log or an API response, and to work out what a value from a database means. It is also the quickest way to check whether a timestamp is in seconds or milliseconds.

How to Use the Unix Timestamp Converter

  1. Paste a timestamp, or pick a date and time instead.
  2. Choose whether you are working in local time or UTC.
  3. Read the date, the ISO string, and the relative time.

Why Choose Our Unix Timestamp Converter?

  • Detects 10 digit versus 13 digit timestamps
  • Local and UTC shown side by side
  • ISO 8601 and RFC 2822 output for copy-paste

Try the Unix Timestamp Converter above — it is free, fast, and works on any device. Bookmark this page to return whenever you need it.