Unix Timestamp Converter
Unix time ⇄ human dates, seconds or millis.
How to use
- 1 Paste a Unix timestamp, or a date string.
- 2 The tool auto-detects seconds vs milliseconds.
- 3 Read the ISO, UTC and local equivalents.
- 4 Copy the value you need.
About Unix Timestamp Converter
The Unix Timestamp Converter translates between Unix time — the number of seconds (or milliseconds) since 1 January 1970 UTC — and human-readable dates.
Paste a timestamp and it detects whether it is in seconds or milliseconds and shows the ISO 8601, UTC and local representations; paste a date and it gives you back the Unix value.
Timestamps are the lingua franca of logs, databases and APIs, but they are unreadable at a glance.
This tool is the fastest way to answer "what time is 1700000000?" or to grab the epoch value for a given date.
It runs entirely in your browser, so it works offline and never logs your queries.
FAQ
How does it tell seconds from milliseconds?
By magnitude — values around 10 digits are treated as seconds, 13-digit values as milliseconds. You can also force a unit.
Which timezone is shown?
ISO and UTC are timezone-independent; the "local" line uses your browser's timezone.