ISO Date Formatter
Format dates to ISO 8601 standard or parse ISO date strings into human-readable formats. Supports all ISO 8601 variations including week dates and ordinal dates.
Examples
Current date/time
In:__NOW__
Out:All ISO 8601 variations
How to Use ISO Date Formatter
- Use the "Format Date to ISO" tab to pick a date and see it in all ISO 8601 variations.
- Use the "Parse ISO to Readable" tab to paste an ISO date string and see its human-readable components.
- Click "Copy" on any result card to copy the value to your clipboard.
- Try the examples to see how different ISO formats are parsed.
About ISO 8601 Date Format
ISO 8601 is the internationally accepted way to represent dates and times. It was first published in 1988 and has been revised several times. The standard covers calendar dates, times, time intervals, durations, and recurring time intervals.
The key advantage of ISO 8601 is that it removes ambiguity. While "01/02/03" could mean January 2, 2003 or February 1, 2003 depending on your locale, "2003-01-02" always means January 2, 2003. This makes it the ideal format for APIs, databases, log files, and any system where dates need to be exchanged reliably.