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Unix Timestamp Converter

Convert epoch timestamps into readable dates, or pick a date to get its Unix timestamp in seconds and milliseconds.

Developer

Unix timestamp converter

Local only
1790435648Current timestamp (seconds)
1790435648395Current timestamp (ms)
1790435640Unix seconds
1790435640000Unix milliseconds
2026-09-26T15:14:00ZISO 8601 (UTC)
Converted on your device

Your browser's clock and time zone are used — no server is involved.

What a Unix timestamp is

A Unix timestamp counts the seconds elapsed since 1 January 1970 at 00:00 UTC, ignoring leap seconds. Because it is a single number in UTC, it is unambiguous across time zones — which is why APIs and databases prefer it.

Seconds or milliseconds?

JavaScript works in milliseconds while most backends use seconds. Values longer than eleven digits are treated as milliseconds automatically, so you can paste either.

Good to know

Frequently asked questions

Does it handle milliseconds?

Yes. Timestamps longer than eleven digits are treated as milliseconds; shorter ones as seconds.

Which time zone is used?

Both UTC and your device's local time zone are shown, so you can compare them directly.

Can I convert negative timestamps?

Yes. Negative values represent dates before 1970 and are converted normally.

Is anything uploaded?

No. All conversion uses your browser's own date functions.

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