> For the complete documentation index, see [llms.txt](https://hi-primus.gitbook.io/bumblebee/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hi-primus.gitbook.io/bumblebee/transformations/transformation-functions/time-and-date/date_extract_daynumber.md).

# Day number of year

Extracts the day number of year from date values in the selected column(s).

## Location

![Day number of year on the interface](/files/-MYpFqXLqZArQtoG4eDY)

## Fields

| Field                 | Type       | Description                                                                          |
| --------------------- | ---------- | ------------------------------------------------------------------------------------ |
| Output column name(s) | Text field | Name of the output column(s), if left blank will save the result on the same column. |

## Example

![Day number of year example](/files/-MYpFqXMYouew9wA0-2n)