Timestamp Converter

Convert Unix epoch time to dates and back.

Convert Unix epoch timestamps to human-readable dates and back, in seconds or milliseconds. It auto-detects the unit and shows local, UTC, and ISO 8601 formats.

Unix timestamp

Date & time → timestamp

Runs entirely in your browser — nothing is uploaded.

How to use the timestamp converter

1Enter a Unix timestamp, or click Now for the current time.
2Read the local, UTC, and ISO 8601 results.
3Or pick a date and time to get its timestamp.

Frequently asked questions

Does it support milliseconds?

Yes — timestamps with 12 or more digits are treated as milliseconds; shorter values are treated as seconds.

What is Unix epoch time?

It's the number of seconds since January 1, 1970 (UTC) — a common way to store dates and times in software.

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