How to use the Date Format Converter
- Type or paste a date — 2026-10-04, 04/10/2026, 4 October 2026 or a timestamp.
- Choose how to read ambiguous dates like 03/04.
- Copy the format you need.
What does this tool do?
03/04/2026 means 3 April in most of the world but March 4 in the US. ISO 8601 (2026-04-03) avoids the confusion and sorts correctly as text, which is why databases and APIs prefer it.
The converter also gives the day of the year, a Unix timestamp and the RFC 2822 format used in email headers.
Why use it?
- Reads many input styles.
- Handles US vs. international order.
- Eleven output formats.
Privacy
The calculation happens instantly in your browser. The numbers you enter are not sent to our servers or saved. There's no account to create and nothing to install.
Last reviewed by the M2Toolkit team.