# Calendar - how can i get the first day of month by processing?

**URL:** <https://discourse.processing.org/t/calendar-how-can-i-get-the-first-day-of-month-by-processing/468>\
**Category:** Coding Questions\
**Created:** [May 28, 2018, 2:12pm UTC](https://discourse.processing.org/t/calendar-how-can-i-get-the-first-day-of-month-by-processing/468 "2018-05-28T14:12:42Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![quark](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/quark/32/26_2.png) [@quark](https://discourse.processing.org/u/quark)\
**Post date:** [May 28, 2018, 3:53pm UTC](https://discourse.processing.org/t/calendar-how-can-i-get-the-first-day-of-month-by-processing/468/3 "2018-05-28T15:53:44Z")

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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 🙂

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