Help: I'm a baker with odd days, need alarm help!

So as a baker I work 4 days on and 2 off, sounds confusing so I'll break it down.

Let's say the first day of my working week is on Monday, I work 4 days so I'll finish the week on Thursday, I'll then have 2 days off (Friday and Saturday) then start my next week on Sunday going for 4 days to Wednesday, etc etc.

So I can't set a conventional alarm because my days off are constantly changing and I don't really want an alarm that goes off at 4am every day. I understand I can just turn off and on alarms but I was wondering if there's anyone clever enough to help me out with my predicament, so far I haven't found any way to set alarms that constantly change.