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

# Dates

{% hint style="danger" %}
**Important Note!**\
\
Constructor Groups’ V1 API has been retired and is no longer available to new customers. Please use the Groups V2 API going forward.\
\
Link to V2 API documentation: <https://developer.perculus.com/v2-en>
{% endhint %}

When sending a date parameter from a request, the date should be in ISO-8601(YYYY-MM-DDTHH:MM:SS) format without an included timezone.

{% hint style="info" %}
An example to a valid date string would be "2024-10-22T14:15:00"
{% endhint %}