Like English, some French greetings depend on the time of day.
Note that Bonne soirée (Have a good evening) and Bonne nuit (Have a good night) are used to say goodbye; they can’t be used to greet people.
You can say Salut regardless of the time of day, so long as you’re speaking informally or to family or friends.
Ça va can be used to ask how someone is doing... and to answer!
In French, an accent mark over a letter can create a new sound.
If the last letter of a word is an e, (without an accent) we usually don’t pronounce it. For example, the final e in femme, bonne, and journée is silent.
In French, you put a space before question marks (?) and exclamation marks (!).