There are 21 hours between 4 p.m. Monday and 1 p.m. Tuesday when measured without changing time zones or adjusting clocks for daylight savings time or other "tricks" to confuse the issue.
21 hours twenty-one
as 4 - 1 = 3
and 24 - 3 = 21
Thursday 2pm
(24 + 24 + 24 + 12 + 5) hours = 89 hours
3am to 2pm is 11 hours.
3am to 2pm is 11 hours.
There are 7 hours between 7 am to 2pm
There are 17 hours between 9pm and 2pm the following day.
5 Hours
7 hours.
9 hours
7 hours.
Two hours
7 hours