> For the complete documentation index, see [llms.txt](https://docs.helmut.de/helmut4-releases/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.helmut.de/helmut4-releases/helmut4-components/streamdesigner/wildcards/date-and-time-21/date-year.md).

# Date Year ?

This wildcard will be replaced by the year of a defined date. The wildcard is used in the following way: 

* {date.year.?}
* For the following input (?) --> 2019-11-01
* The output is going to be --> 2019

{% hint style="warning" %}
The input format for the date should adhere to the following pattern: YYYY-MM-DD.
{% endhint %}