Je travaille tout les samedi
tout les samedis et dimanches
Samedi is how you say Saturday in French.
You would say "samedi prochain" in French to refer to next Saturday.
"qu'est-ce que vous (faites) samedi" means "what are you (doing) on Saturday?" in French.
Samedi soir
It would be "Le samedi." However if you want to say next Saturday it would be "Le samedi prochain."
How to say on Saturday I went on a tour
Ce Samedi - if it's this Saturday Le Samedi - if it's Saturday's in general.
Je serai de retour samedi
La plupart des réservations vont du samedi au samedi.
I'm guessing you meant " see you on Saturday" See you --> Je te verrais on Saturday--> Samedi " Je te verrai samedi. "
In French or En français - you would say, 'chaque'