How many hours are 830 to 330?

Answer 1

seven
example 8:30am to 3:30pm
is 8:30 to 12:30 = 4
and 12:30 to 3:30 = 3
then 4 + 3 = 7
or 15:30 - 08:30 = 7:00

Unless times are 12 hours later then 7 + 12 = 19
example 8:30 pm to 3:30pm next day is 19 hours
as in 8 - 3 = 5 then 24 - 5 = 19