Unix Timestamp Converter

Unix Timestamp Converter features

• 01

  Auto-detects the unit

  Paste any epoch and the tool figures out whether it's seconds, milliseconds, microseconds, or nanoseconds by digit count — or lock a unit yourself. No more multiplying by 1000 in your head.

• 02

  Both directions, live

  Convert a timestamp to a date, or pick a date and time to get the epoch in seconds and milliseconds. A live current-Unix-time readout ticks every second so you always have "now" one click away.

• 03

  Every format, plus batch

  Copy the result as ISO 8601, RFC 2822, your locale's full date, or human relative time. Paste a whole column of timestamps into batch mode to convert them all to ISO at once.

Unix Timestamp Converter FAQ

How do I convert a Unix timestamp to a date?

Paste the epoch number into the timestamp field. The converter auto-detects the unit and instantly shows the date in ISO 8601, RFC 2822, your locale format, and as relative time. Switch the zone selector to UTC or any IANA time zone to see the same instant elsewhere.

What is the current Unix timestamp?

The live clock at the top shows the current Unix time in seconds and milliseconds, updating every second. Unix time counts the seconds elapsed since 00:00:00 UTC on 1 January 1970, ignoring leap seconds.

How can I tell if a timestamp is in seconds or milliseconds?

A 10-digit value is almost always seconds; a 13-digit value is milliseconds; 16 digits is microseconds and 19 is nanoseconds. This tool applies that rule automatically, but you can override it with the unit selector if your data is unusual.

Does converting a date to a timestamp use my local time zone?

You choose. With the zone toggle on Local, the date and time you enter are interpreted in your browser's zone; switch it to UTC to treat them as UTC. The epoch is the same absolute instant either way — only the wall-clock interpretation changes.

Is my data sent to a server?

No. All parsing and formatting happens in JavaScript in your browser. Timestamps you paste never leave your device, which makes this safe for logs, tokens, or anything sensitive.