How should you write Mother’s Day and Father’s Day? Well, the title of this post should have tipped you off, but we won’t take any chances. Here’s how you can make sure that you don’t ruin a parent’s special day with a misplaced apostrophe.

It’s a simple rule to remember: Both of these holidays are singular possessives.

  • Correct: Mother’s Day, Father’s Day
  • Incorrect: Mothers’ Day, Fathers’ Day
  • Incorrect: Mothers Day, Fathers Day

But what did Nicole do on “My Two Dads”? We have no idea, but she should have written them both cards that read, “Happy Father’s Day” or a singular card, if she was feeling stingy, that read the same thing.

Here are the correct ways to write a few other holidays:

  • New Year’s Eve, New Year’s Day
  • St. Patrick’s Day
  • Veterans Day