High School

We appreciate your visit to 1 Change the following times to 12 hour clock time adding a m or p m as necessary a 13 10b 09 45c 22 30d. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

1. Change the following times to 12-hour clock time, adding 'a.m.' or 'p.m.' as necessary.

a) 13:10

b) 09:45

c) 22:30

d) 04:05

2. A DVD recorder uses 24-hour clock time.

a) What time is shown on the DVD recorder at 7:30 p.m.?

b) The DVD recorder is set to record programmes from 11:10 to 16:40.

What are these times in 12-hour clock time?

Answer :

To convert time from a 24-hour clock to a 12-hour clock format, follow these simple rules:

  1. If the hour is greater than 12, subtract 12 from the hour and add 'p.m.'.
  2. If the hour is less than or equal to 12 and not zero, add 'a.m.' if it's before noon, or 'p.m.' if it's noon or after.
  3. If the hour is 0, convert it to 12 a.m.

Let's apply these rules to the given times:

  1. Change the following times to 12-hour clock time:
    a) 13:10
    • 13 is greater than 12, so we subtract 12 to get 1
    • The time is 1:10 p.m.

b) 09:45

  • 9 is less than 12, so it's in the morning
  • The time is 9:45 a.m.

c) 22:30

  • 22 is greater than 12, so we subtract 12 to get 10
  • The time is 10:30 p.m.

d) 04:05

  • 4 is less than 12, so it's in the morning
  • The time is 4:05 a.m.

  1. A DVD recorder uses 24-hour clock time:

a) What time is shown on the DVD recorder at 7:30 p.m.?

  • 7:30 p.m. in 24-hour format is 19:30

b) The DVD recorder is set to record programmes from 11:10 to 16:40.

  • 11:10 is less than 12, so it is 11:10 a.m.
  • 16:40 is greater than 12, so we subtract 12 to get 4:40
  • The time is 4:40 p.m.

In summary, converting between 24-hour and 12-hour time formats involves adjusting hours for p.m. times and adding appropriate a.m. or p.m. markers based on the time of day. This is a common skill used in various real-life situations, such as reading timetables and setting electronic devices.

Thanks for taking the time to read 1 Change the following times to 12 hour clock time adding a m or p m as necessary a 13 10b 09 45c 22 30d. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada