A. Convert the following 12-hour times to 24-hour time
1. 12:02 p.m. =
2. 10:30 p.m. =
3. 3:20 a.m. =
4. 12:05 a.m. =
5. 7:50 p.m.
B. Convert the following 24-hour times to 12-hour time.
1. 1643 =
2. 0230 =
3. 0520 =
4. 0001 =
5. 2040 =
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Answers & Comments
Answer:
A.
1. 12:02
2. 10:30
3. 03:20
4. 00:05
5. 19:50
B.
1. 4:43pm
2. 2:30am
3. 5:20am
4. 12:01am
5. 8:40pm
Step-by-step explanation:
Converting from 12 hour to 24 hour clock
Starting from the first hour of the day (12:00 AM or midnight to 12:59 AM), subtract 12 hours:
12:00 AM = 0:00
12:15 AM = 0:15
From 1:00 AM to 12:59 PM, the hours and minutes remain the same:
9:00 AM = 9:00
12:59 PM = 12:59
For times between 1:00 PM to 11:59 PM, add 12 hours:
3:17 PM = 15:17
11:59 PM = 23:59.
Converting from 24 hour to 12 hour clock
Starting from the first hour of the day (0:00 / midnight to 0:59), add 12 hours and AM to the time:
0:30 = 12:30 AM
0:55 = 12:55 AM
From 1:00 to 11:59, simply add AM to the time:
2:25 = 2:25 AM
9:30 = 9:30 AM
For times between 13:00 to 23:59, subtract 12 hours and add PM to the time:
16:55 = 4:55 PM
21:45 = 8:45 PM
https://www.freecodecamp.org/news/mathematics-converting-am-pm-to-24-hour-clock/
HOPE IT HELPS :)