> For the complete documentation index, see [llms.txt](https://docs.cascade.io/cascade/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cascade.io/cascade/functions-and-expressions/functions/date-time/isoquarter.md).

# ISOQUARTER

ISOQUARTER(`date`)

Returns the quarter of a given date as an integer in ISO8601 format (1-4).

### Arguments

| Argument | Description        |
| -------- | ------------------ |
| `date`   | Date/time value(s) |

### Output

Integer corresponding to the ISO8601 formatted quarter.

### Example

{% embed url="<https://datawrapper.dwcdn.net/5wnGP/1>" %}