How do you say have made my day in french?

"Have made my day" can be translated into French in a few different ways, depending on the context and level of formality:

Informal:

* Tu m'as fait la journée! (You've made my day!) - This is the most common and direct translation.

* Tu m'as vraiment fait plaisir! (You've really pleased me!) - This emphasizes the positive feeling you have.

Formal:

* Vous m'avez fait passer une agréable journée. (You've made my day pleasant.) - This is more formal and polite.

* Vous avez contribué à rendre ma journée plus joyeuse. (You've helped to make my day more joyful.) - This is a slightly more elaborate and formal way to express the same sentiment.

In all cases, remember to use the correct pronoun (tu/vous) depending on who you are addressing.