Question

Change
into 24 hour clock time
9:30 am
6:05 pm
11:46 pm
2:20 am
Teacher's Signature....​

Answer 1

Answer:

1. 21:30am

2. 18:05pm

3. 23:46pm

4. 14:20am

Answer 2

Answer:

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