Timestamp Converter
Unix ↔ human-readable dates
Current Unix time
—
seconds
—
milliseconds
Starting clock…
Examples
Unix seconds to date
1716239022
Mon, May 20, 2024, 9:03:42 PM UTC
ISO date to Unix time
2024-05-20T21:03:42Z
1716239022 s · 1716239022000 ms
Frequently asked questions
Does it detect seconds vs milliseconds automatically?
Yes. The converter reads the number's magnitude — ~10-digit values are treated as seconds, ~13-digit as milliseconds, and it also handles microseconds and nanoseconds. The detected unit is shown so you can confirm.
What is a Unix timestamp?
It's the number of seconds elapsed since the Unix epoch — 00:00:00 UTC on 1 January 1970. Many systems store times this way; milliseconds since the epoch are also common (e.g. JavaScript's Date.now()).
Which time zone are dates shown in?
Both your local time zone (detected from your browser) and UTC, plus a timezone-independent ISO 8601 string. Relative time like "in 3 days" is computed against the live current time.
Is my data sent anywhere?
No. All parsing and formatting use your browser's built-in date engine — nothing is uploaded or logged.