Have a blessed day in French?

There are a few ways to say "Have a blessed day" in French, depending on the context and level of formality:

Formal:

* Que Dieu vous bénisse toute la journée. (May God bless you all day long.)

* Ayez une journée bénie. (Have a blessed day.)

Informal:

* Passe une bonne journée. (Have a good day.)

* Bonne journée! (Good day!)

* Que ta journée soit belle. (May your day be beautiful.)

You can also use a more general phrase like "Profitez bien de votre journée" (Enjoy your day).

The best option will depend on your relationship with the person you are speaking to.