Converting Time
When do we add 'am' to our time?
before noon
When do we add pm to our time?
after noon
How many digits do we always need to have when writing 24 hour time?
four
Name at least three places that use 24 hour time.
cinema, watch, military, station (bus and train), airport, microwave
What word must we always put at the end of our 24 hour time?
hours
How is 0230 read in 24 hour time?
Reminder: you must read the zero at the front
zero two thirty hours
Complete the clock so it shows 24 hour time:
24 or 00, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23.
a) Convert 6:55 am to 24 hour time
b) Convert 6:55 pm to 24 hour time
a) 0655 (zero six fifty five hours)
b) 1855 (eighteen fifty five hours)
How is 0600 read in 24 hour time?
Reminder: the two zeros at the end are named as ‘hundred hours’.
zero six hundred hours
- Convert 1300 hours to 12 hour time
- Identify if the 12 hour time will be am or pm
1 pm, because 13:00 hours is after noon this meaning it must be pm.
What are the two ways midnight can be written as in 24 hour time?
Remember: Both tell the amount of time that has passed since midnight.
24: 00 or 00:00
How is 0008 read in 24 hour time?
Reminder: For any minutes past midnight the double zero is read as one zero, but the zero before the minutes is also read.
zero zero eight hours
- Convert 1345 hours to 12 hour time
- Convert 3:00 pm to 24 hour time
- 1: 45 pm
- 1500 hours
a) Convert 1530 hours to 12 hour time
b) Covert 0556 to 12 hour time
Reminder: add 'am' to indicate if the time is before noon and add 'pm' if after noon.
a) 3: 30 pm
b) 5: 56 am
How would you read the following 24 hour times?
a) 0430
b) 0900
c) 0007
a) zero four thirty hours
b) zero nine hundred hours
c) zero zero seven hours