I may be using the wrong term (hence why I can't find it on google).

"Are there any functions or common code for Accounting Months Deliminations?"

For Example, this month started on a friday but on most accounting journals the weeks are measured by the first monday of the month so instead of having the 1st of July it would be the 4th of July. Same thing with the month end (29th instead of the 31st)

Again, I'm sure someone has created this 'wheel' before, and I can't seem to find it for the life of me.