# 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:** 4\
**Page:** 1

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**Author:** ![basher24](https://avatars.discourse-cdn.com/v4/letter/b/ee7513/32.png) [@basher24](https://discourse.processing.org/u/basher24)\
**Post date:** [May 28, 2018, 2:12pm UTC](https://discourse.processing.org/t/calendar-how-can-i-get-the-first-day-of-month-by-processing/468/1 "2018-05-28T14:12:42Z")

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

Sunday or Monday Or … Or Saturday

thanx  
Basher

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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:** [May 28, 2018, 2:38pm UTC](https://discourse.processing.org/t/calendar-how-can-i-get-the-first-day-of-month-by-processing/468/2 "2018-05-28T14:38:50Z")

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[http://Studio.ProcessingTogether.com/sp/pad/export/ro.9to4yV59zus7B](http://Studio.ProcessingTogether.com/sp/pad/export/ro.9to4yV59zus7B)

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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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**Author:** ![basher24](https://avatars.discourse-cdn.com/v4/letter/b/ee7513/32.png) [@basher24](https://discourse.processing.org/u/basher24)\
**Post date:** [May 28, 2018, 10:05pm UTC](https://discourse.processing.org/t/calendar-how-can-i-get-the-first-day-of-month-by-processing/468/4 "2018-05-28T22:05:05Z")

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thanx … its working