eight 16:00 - 08:00 = 08:00
8 hours 40 minutes 16:00 - 07:20 = 08:40
three hours forty minutes 12:10 - 08:30 = 03:40 unless 12 hours later then 15:40
six and a half 14:30 - 08:00 = 06:30
eight and a half 22:00 - 13:30 = 08:30
08 - 10 hours
eight 16:00 - 08:00 = 08:00
Aprox 3 to 4 hours
8 hours 40 minutes 16:00 - 07:20 = 08:40
8 hours 30 minutes 16:30 - 08:00 = 08:30 or 4 (8 to 12) + 4.5 (12 to 4.5) = 8.5
4 hours 23 minutes 0:15 + 4:00 + 0:08 = 4:23 = 12:08 - 07:45 unless 12 hours later then 16:23
Three and a half11:30 - 08:00 = 3:30
three hours forty minutes 12:10 - 08:30 = 03:40 unless 12 hours later then 15:40
six and a half 14:30 - 08:00 = 06:30
eight and a half 22:00 - 13:30 = 08:30
eight hours fifteen minutes 0:30 + 3:00 + 5:00 - 0:15 = 3:30 + 4:45 = 8:15 or 17:00 - 08:30 = 08:30 08:30 - 00:15 = 08:15
eight and a half 15:30 - 07:00 = 08:30 unless 12 hours later then 20:30