# Conversion of Time to seconds, minutes, and hours Mathematics Primary 4 Third Term Lesson Notes

### Conversion of Time Ante Meridiem (AM) and Post Meridiem (PM)

- 10:30 AM is written as ________. a) 10:30 b) 10:30 PM c) 10:30 AM
- 3:45 PM is written as ________. a) 3:45 b) 3:45 AM c) 3:45 PM
- In the 12-hour clock system, AM stands for ________. a) After Meridiem b) Ante Meridiem c) All Meridiem
- 7:00 AM is ________ in 24-hour format. a) 07:00 b) 19:00 c) 12:00
- In the 12-hour clock system, PM stands for ________. a) Post Meridiem b) Pre Meridiem c) Past Meridiem
- 9:15 PM is ________ in 24-hour format. a) 09:15 b) 21:15 c) 12:15
- 1:30 PM is written as ________. a) 1:30 b) 1:30 AM c) 13:30
- In the 12-hour clock system, 12:00 PM is ________. a) midnight b) noon c) not defined
- 6:45 AM is ________ in 24-hour format. a) 06:45 b) 18:45 c) 24:45
- 11:30 PM is written as ________. a) 11:30 b) 11:30 AM c) 23:30

Telling The Time

- There are __________ seconds in a minute. a) 60 b) 30 c) 90
- ________ minutes make up an hour. a) 60 b) 30 c) 90
- If a clock shows 5:30 PM, the time in 24-hour format is __________. a) 17:30 b) 5:30 c) 23:30
- There are __________ minutes in 2 hours. a) 120 b) 60 c) 240
- ________ seconds make up a minute. a) 60 b) 30 c) 90
- If a clock shows 9:45 AM, the time in 24-hour format is __________. a) 9:45 b) 21:45 c) 14:45
- There are __________ seconds in 3 minutes. a) 180 b) 60 c) 360
- ________ hours make up a day. a) 24 b) 12 c) 48
- If a clock shows 18:20 in 24-hour format, the time in 12-hour format is __________. a) 6:20 PM b) 6:20 AM c) 18:20 PM
- There are __________ minutes in 4 hours. a) 240 b) 120 c) 480