I work a 12:05 a.m. overnight shift on Tuesday, but my manager told me to come in on Monday. Do I come in Monday morning or Monday night?
Why don't you ask your manager?
I believe your manager meant you come on Monday morning not Monday night as it will be already Tuesday. However, it would be wise to contact them and confirm the reporting time not to get into trouble.
I would asume you are doing the Monday shift, same shift as you do on tuesday.
you would go in on Monday 12a. but again like person above said I my self would call and confirm
You should ask your manager! But I'm thinking the same time but just on Monday!