What's the correct or acceptable option to refer to the time or work times from the following options?
1) "In which hour do you begin / start to work tomorrow"?
(it's not his first day at work, I'm just asking him about the time that he's going to START or to BEGIN tomorrow there.)
2) "In which time are you going to begin / start the university (or studies) tomorrow.
(As well as example NO.1, it's not his first day at the university, I'm just asking him about the time that he's going to START or to BEGIN tomorrow there.)