

I have a taxi company. On one night, one of my drivers did two jobs, one dispatched at 00:15, the other at 00:45, and he clocked off at 02:15. How long was he working for?
A) 1 hour
B) 2 hours
C) 3 hours
D) 2 hours 30 minutes
E) any of the above
D can also happen if the 00:45 job was before the 00:15 job, which thanks to the magic of daylight savings, is also possible