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Unix Timestamp Converter: How to Convert Timestamps to Dates

Updated 2 min readBy the TabShed team

Convert Unix timestamps to human-readable dates and vice versa. Understand epoch time and timestamp formats.

Timestamp ConverterUnix time to readable dates
Open Timestamp Converter
On this page
  1. What Is a Unix Timestamp?
  2. Common Uses in Development
  3. Milliseconds vs Seconds
  4. Convert Timestamps Online

What Is a Unix Timestamp?

A Unix timestamp is the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC (the "Unix epoch"). For example, 1000000000 = September 9, 2001 01:46:40 UTC.

Common Uses in Development

  • Database fields storing creation/modification times
  • JWT (JSON Web Token) expiration times (exp, iat claims)
  • API responses from servers
  • Log file timestamps
  • Cache expiration times

Milliseconds vs Seconds

Be careful: JavaScript's Date.now() and many databases use milliseconds (1000× larger). Python's time.time() and Unix use seconds. A 13-digit timestamp (e.g., 1700000000000) is milliseconds; a 10-digit one (1700000000) is seconds.

Convert Timestamps Online

  1. Open Timestamp Converter.
  2. Paste your timestamp (seconds or milliseconds).
  3. See the converted UTC and local time instantly.
  4. Or enter a date to get the timestamp value.

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