Does it handle seconds and milliseconds?

Yes. Values under 11 digits are treated as seconds and longer values as milliseconds, and both are shown in the result.

Which timezone is used?

The result shows UTC and your device's local timezone side by side, so you can check both at once.

Can I convert a date back into a timestamp?

Yes. Type an ISO 8601 date in the date field and the matching Unix time appears immediately.

Time

Timestamp Converter

Convert Unix time to ISO 8601, UTC, and local time in both directions.

Input

Unix time (seconds)

ISO 8601

Result

Please input

Unix Timestamp Converter

Convert a Unix timestamp to a readable date, or turn a date into a Unix timestamp. Seconds and milliseconds are both accepted, and results are shown in ISO 8601, UTC, and your local time.

How to use

Paste a Unix timestamp, or type a date such as 2024-01-01T00:00:00Z.
The tool detects seconds or milliseconds automatically.
Read the result in ISO 8601, UTC, and your local timezone.
Copy the format you need into your code or logs.

Frequently asked questions

Does it handle seconds and milliseconds?: Yes. Values under 11 digits are treated as seconds and longer values as milliseconds, and both are shown in the result.
Which timezone is used?: The result shows UTC and your device's local timezone side by side, so you can check both at once.
Can I convert a date back into a timestamp?: Yes. Type an ISO 8601 date in the date field and the matching Unix time appears immediately.