# Proposal to add a dayOfWeek() function to Processing

**URL:** <https://discourse.processing.org/t/proposal-to-add-a-dayofweek-function-to-processing/47016>\
**Category:** Processing\
**Created:** [August 25, 2025, 4:06am UTC](https://discourse.processing.org/t/proposal-to-add-a-dayofweek-function-to-processing/47016 "2025-08-25T04:06:08Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![GoToLoop](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/gotoloop/32/86_2.png) [@GoToLoop](https://discourse.processing.org/u/GoToLoop)\
**Post date:** [August 27, 2025, 5:28pm UTC](https://discourse.processing.org/t/proposal-to-add-a-dayofweek-function-to-processing/47016/5 "2025-08-27T17:28:25Z")

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> [@quark](#):
>
> Back in 2018…

> [@Calendar - how can i get the first day of month by processing?](https://discourse.processing.org/t/calendar-how-can-i-get-the-first-day-of-month-by-processing/468/3):
>
> If you are interested in coding a solution using basic Java then have a look at [Zeller’s Congruence](https://en.wikipedia.org/wiki/Zeller%27s_congruence). It should be fun and not too difficult to implement slightly_smiling_face

> [@quark](#):
>
> and I suggested they looked at [Zeller’s congruence](https://en.wikipedia.org/wiki/Zeller%2527s_congruence).

[https://forum.processing.org/two/discussion/3350/getting-the-day-of-the-week-without-calendar](https://forum.processing.org/two/discussion/3350/getting-the-day-of-the-week-without-calendar)  
Another online version but for Java/Pjs:  
[http://Studio.ProcessingTogether.com/sp/pad/export/ro.9to4yV59zus7B](http://studio.processingtogether.com/sp/pad/export/ro.9to4yV59zus7B)

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