> For the complete documentation index, see [llms.txt](https://developer.ivvy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.ivvy.com/development-reference/date-format.md).

# Date Format

The iVvy API uses a date format to represent dates. The format is a simple text-based format in the following form:

`yyyy-mm-dd`

**Where**

* 'yyyy' is the 4 digit year of the date,
* 'mm' is the two digit month of the date, where January = 01 and December = 12, and
* 'dd' is the two digit day of the month.