What time is it 7 Half hours before 2:12am
7 halves of an hour would be 3 hours and 30 minutes. 3 hours and 30 minutes before 2:12 am is 10:18.
It would be 5:42 am
Seven half hours = 210 min
2:12 AM is 2(60) + 12 = 132 minutes after midnight
So we need to find the time 210 - 132 = 78 minutes before midnight
11PM is 60 minutes before midnight
18 minues before this = 10:42 PM