1230 ???? Are you on the '24' hour clock? If so , 5 hours previously will be 0730 hrs.
If you are on the '12 hour' clock, please specify whether it is 'am' or 'pm'.
If it is 12:30 am , the 5 hours previously will be 7:30 pm
If it is 12:30 pm , then 5 hours previously will be 7:30 am.
6 and 1/2 hours
1230/5 = 246
20.5 hours.
3.5 hours.
1375
On A 12 hour clock, it would be 12:30 am, or 12:30pm.
It is 4 hours.
Four
4
12:30 am in military/24 hour time is 0030 hours. NB 12:30 am is 30 minutes past midnight.
1230 PM in military time is 1230 hours in the 24-hour clock format.
201/2 hours exactly.