BigBigTools

Date to Unix timestamp

Convert an ISO date to Unix seconds; explicitly specify Z or a time zone offset.

About this tool

Date to Unix timestamp Convert an ISO date to Unix seconds; explicitly specify Z or a time zone offset. Enter content or choose a local file on the left, adjust the available settings, and run the tool. Results or previews appear on the right. Use the copy or download actions provided after processing. Built-in input example: 2026-01-01T00:00:00Z

Frequently asked questions

What does this tool do?
Convert an ISO date to Unix seconds; explicitly specify Z or a time zone offset.
How do I use this tool?
Enter content or choose a local file on the left, adjust the available settings, and run the tool. Results or previews appear on the right. Use the copy or download actions provided after processing.
Which settings can I change?
There are no extra settings. Supply data using the input area shown on the page.
What should I check before using it?
Use the input formats and settings supported by the page. Check your input if an error appears; processing again updates the right panel.
Where is my input sent?
Input is processed in the current browser and is not automatically uploaded by this tool. Copying requires browser permission; select and copy the result manually if needed.