Fathers, father's or fathers' day?

[Hedgehog1977]

Which is it? Fathers' seems correct as it's for all fathers, but most cards I've seen have father's on them. Hoping I'm wrong as this is DH's 1st card and I want to be able to keep it!

Hx

[DadDadDad]

Well, you can make the case for Fathers' if you think of it as the Day of Fathers, but everyone seems to write Father's, so I think we just have to accept that's the way it is: something like Day of my Father. It doesn't seem worth worrying about.