In my country, there are specialised "coaching centres" for IGCSE and IAL students. The same classes are usually held on multiple different timings. This we call "slot".
My English Language class has two slots. Slot 1 is 3:30—5:00 PM. And slot 2 is 6:30—8:00 PM.
It's much like "shift". Only that is used to refer to work timings, not class timings.
Check out: during her slot.
This is what I'm writing:
Can we sit the monthly tests in whichever slot we wish to? Or it has to be the one I do my classes on?
What preposition to put before "slot" in this context?