Office-hours calculator

Instructions: Enter start/end times with hours and minutes written together. Do not enter AM/PM. Factor is the number of times this office hour is scheduled.
Example: 4 periods from 11:45 AM to 1:15 PM would be entered as: 1145 to 115 times 4.
Hint: In lieu of a mouse, try using the TAB key to go from one field to the next.

Start Time
End Time
factor
minutes
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Total: Hours and minutes