Unix Timestamp Converter — Epoch to Date & Back (Free)
Free Unix timestamp / epoch converter. Convert an epoch (seconds or milliseconds, auto-detected) to a human-readable UTC and ISO 8601 date, or a date back to epoch. Includes a Now button.
TL;DR: Free Unix timestamp / epoch converter. Convert an epoch (seconds or milliseconds, auto-detected) to a human-readable UTC and ISO 8601 date, or a date…
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
A free Unix timestamp (epoch) converter. Convert an epoch to a readable UTC and ISO 8601 date, or a date back to epoch seconds and milliseconds. Seconds vs milliseconds is auto-detected.
About Unix time
- A Unix timestamp is the number of seconds since 1 January 1970 UTC.
- 10-digit values are seconds; 13-digit values are milliseconds.
- Output is shown in ISO 8601 and a readable UTC string; a Now button fills the current epoch.
Why epoch instead of a calendar date
A Unix timestamp is a single number, so it sorts and compares correctly without parsing a date string, and it's the same value regardless of which timezone the person reading it is in — useful when debugging logs, an API response, or a database field that stores time as an integer.
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