# Date range

## Date range
`start_date` and `end_date` (both `YYYY-MM-DD`, required) bound the range on the
request's **creation date**, inclusive on both ends. The window is capped at
**400 days**; an inverted range or one wider than the cap returns
`400 VALIDATION_FAILED`. Keep both parameters present on every page of a paged
read — they define the query window, and the cursor resumes within it.

Version: 1.79.2

## Description:

  - `Date range` ()
    `start_date` and `end_date` (both `YYYY-MM-DD`, required) bound the range on the
request's **creation date**, inclusive on both ends. The window is capped at
**400 days**; an inverted range or one wider than the cap returns
`400 VALIDATION_FAILED`. Keep both parameters present on every page of a paged
read — they define the query window, and the cursor resumes within it.