Convert the following times between 12-hour and 24-hour formats: 1. 09:59 AM to 24-hour format 2. 6:03 PM to 24-hour format 3. 2147 to 12-hour format 4. 0001 to 12-hour format
Understand the Problem
The question is asking to convert between 12-hour and 24-hour time formats. For the first two questions, you need to convert the given 12-hour times (with AM/PM) into their 24-hour clock equivalents. For the last two questions, you need to convert the 24-hour times into their 12-hour clock equivalents, indicating AM or PM.
Answer
30. 09:59 31. 18:03 32. 9:47 P.M. 33. 12:01 A.M.
Answer for screen readers
- 09:59
- 18:03
- 9:47 P.M.
- 12:01 A.M.
Steps to Solve
- Convert 09:59 A.M. to 24-hour time
Since it's A.M. and the hour is less than 12, the 24-hour time is the same as the 12-hour time.
- Convert 6:03 P.M. to 24-hour time
To convert P.M. time to 24-hour time, add 12 to the hour. $6 + 12 = 18$. So, 6:03 P.M. is 18:03 in 24-hour time.
- Convert 2147 to 12-hour time
Since 21 is greater than 12, it's a P.M. time. Subtract 12 from 21 to get the 12-hour format hour. $21 - 12 = 9$. Therefore, 2147 is 9:47 P.M.
- Convert 0001 to 12-hour time
0001 in 24-hour time is 12:01 A.M. in 12-hour time.
- 09:59
- 18:03
- 9:47 P.M.
- 12:01 A.M.
More Information
The 24-hour clock is commonly used in many countries and fields such as transportation, military, and computing because it avoids the ambiguity of AM/PM.
Tips
A common mistake is forgetting to add 12 when converting PM times to 24-hour format. Also, when converting from 24-hour time, people sometimes forget to subtract 12 to get the equivalent PM time or incorrectly label AM and PM. For times between 0000 and 0059, it's easy to confuse this with 12:00 AM and 12:59 AM, so paying attention to this conversion is important.
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