Is it possible to set reminders for 2 weeks on, 2 weeks off?

My husband works swing shift - 2 weeks on days, 2 weeks on nights. He depends on me to be his last line of defense against oversleeping when he’s on night shift, however, I’m also forgetful.

I was hoping there was some way to create a reminder to repeat for two weeks then skip two weeks, repeating. But I can’t figure it out and haven’t found any answers anywhere.

Any ideas? Do I need a third-party app to do this?