Determine first monday of each month

[BYoung]

Hello, 

I am looking for a way to determine the date of the first Monday of each month based on the date provided.

For example...

Date Field	First Monday of the Month
2021-06-11	2021-06-07
2021-05-21	2021-05-03
2021-05-05	2021-05-03
2021-03-13	2021-03-01
2021-01-09	2021-01-04

The fact that monday comes on different days, and months can have 4 or 5 weeks is throwing me off.

Any ideas?

Thank you all in advance!

[apathetichell]

@BYoungThere are lots of amazing things you can do in datetime with various format options! I'm a big fan of "%u"...