Unix Timestamp Converter
Convert a Unix timestamp to a human-readable date, or turn a date into its Unix timestamp. Shows local and UTC time, handles seconds and milliseconds, and updates live.
About Unix Timestamp Converter
A Unix timestamp counts the seconds (or milliseconds) since midnight UTC on 1 January 1970. It's the format most databases, logs, and APIs use to store an instant unambiguously. This converter turns a timestamp into a readable local and UTC date and back again, and auto-detects whether your number is in seconds or milliseconds.
Frequently asked questions
Seconds or milliseconds — which is my number?+
A 10-digit timestamp is seconds; a 13-digit one is milliseconds. The tool detects the magnitude automatically, and you can switch units manually.
Why does the date differ from mine?+
Timestamps are timezone-independent instants. The tool shows both your local time and UTC — a mismatch usually just means a timezone offset.
What is the Unix epoch?+
The epoch is the zero point of Unix time: 1970-01-01 00:00:00 UTC. Timestamps are simply the count of time elapsed since then.