12-HR and 24-HR
Time Conversion
Calculating Time
Word Problems
Challenge Problems
100
Convert to 12-hour clock:
20:35
8:35 PM
100
Lisa baked a cake for 1 hour and 45 minutes. How many minutes is that?
105 minutes
100
Mary woke up at 7:30 AM. She took 20 minutes to get ready and 10 minutes to eat breakfast. What time did she finish getting ready for school?
8:00 AM
100
Mark left his house at 7:15 AM to go to school. It took him 25 minutes to walk to school. What time did he arrive at school? Write your answer in 24-hr clock
07:40
100
Peter started typing a composition at 18 05. He printed the composition at 21 25.bHow long did Peter take to type and print the composition?
3 hrs 25 mins
200
Convert to 24-hour 11:50 PM
23 50
200
5 hrs and 30 mins =_____ mins
330 mins
200
The school day starts at 8:00 AM and ends at 2:30 PM. How long is the school day?
6 hours and 30 minutes
200
Lisa left her house at 8:10 AM to catch the bus. The bus ride took 30 minutes. What time did she arrive at school? Write your answer in 24-hr clock
08:40
200
What time did the piano concert start?
18 15
300
Convert to 24-hour 12:45 AM
00 45
300
There are 24 hours in 1 day. How many hours are in 3 days?
72 hours
300
John has soccer practice from 5:00 PM to 6:15 PM. How long is his soccer practice?
1 hour and 15 minutes
300
Sarah started baking cookies at 4:30 PM. She baked for 1 hour and 15 minutes. What time did she finish baking? Write your answer in 24-hr clock
17:45
300
What time did the movie end? 
18 59
400
Convert to 12-hour:
19:00
7:00 PM
400
250 mins = ___ hr ____mins
4 hrs 10 mins
400
There are 60 minutes in 1 hour. How many minutes are in 2 hours and 30 minutes?
150 minutes
400
The movie started at 8:10 PM and ended at 10:20 PM. How long did the movie last?
2 hours and 10 minutes
400
A soccer match started at 19 30 and ended at 2115.
How long was the match?
1 hr 45 mins
500
Convert to 12-hour:
04:30
4:30 AM
500
3 hrs 50 mins = _____ mins
230 mins
500
A flight from Cincinnati to Chicago takes 50 minutes. If the flight departs at 9:35 AM from Cincinnati, what time will it arrive in Chicago? Write your answer in 24-hr clock
10:25
500
A train journey from Chicago to Miami takes 10 hours. If the train departs at 1:20 PM from Chicago, what time will it arrive in Miami? Write your answer in 24-hr clock
23:20
500
A plane landed at 02 35 in Changi Airport. The flight took 6 h 15 min. What time did the plane take off?
Give your answer in 24-hour clock.
20 20 of the previous day