I am trying to calculate the number of minutes that elapsed in an hour.

My example is that I have a start and end time.

Start End
9:00 11:15

I want to calculate the number of minutes that occured in the 9:00 hour, the number of minutes that occured in the 10:00 hour and the number of minutes that occured in the 11:00 hour.

It would look like this

9:00 10:00 11:00
60 60 15

I am stuck and a formula to calculate this and any help would be appreciated.

Best regards,
Eternalimit