24-Hour Time
Elapsed Time
Time Differences
Time Zones
Challenge
100

Convert 3:25 p.m. to 24-hour time.

1525

 

100

What time is 2 hours after 7:40 a.m.?

9:40 a.m.

100

How many hours and minutes between 2:00 p.m. and 5:30 p.m.?

3 hrs 30 min

100

If it’s 12:00 noon UTC, what time is it in Brisbane (UTC+10)?

10:00 p.m.

100

A train leaves at 1:25 p.m. and arrives at 4:50 p.m. How long is the journey?

3 hrs 25 min

200

Convert 0645 hours to a.m./p.m. format.

6:45 a.m.

200

What time is 3 hours before 11:15 p.m.?

8:15 p.m.

200

How many hours and minutes between 0940 and 1345?

4 hrs 5 min

200

If it’s 9:00 a.m. in Sydney (UTC+10), what time is it in Perth (UTC+8)?

7:00 a.m.

200

A movie starts at 7:15 p.m. and ends at 9:42 p.m. How long was it?

2 hrs 27 min

300

Write 11:59 p.m. in 24-hour time.

2359

300

A train leaves at 9:20 a.m. and arrives at 1:05 p.m. How long was the trip?

3 hrs 45 min

300

Difference between 10:15 a.m. and 4:05 p.m.?

5 hrs 50 min

300

If it’s 3:00 p.m. in London (UTC+0), what time is it in New York (UTC−5)?

10:00 a.m.

300

A student in Perth (UTC+8) watches a live stream that begins at 5:00 p.m. in New York (UTC−5). What time is it in Perth when the stream starts?

6:00 a.m. next day

400

Convert 0020 hours into a.m./p.m. format.

12:20 a.m.

400

A bus departs at 6:55 p.m. and arrives at 12:10 a.m. the next day. How long was the trip?

5 hrs 15 min

400

Difference between 2305 and 0215 the next day?

3 hrs 10 min

400

A call is made from Cairns at 8:00 p.m. to a friend in Tokyo (UTC+9). What time is it in Tokyo?

7:00 p.m.

400

A flight leaves Brisbane (UTC+10) at 11:30 p.m. and takes 9 hours. What is the local London time (UTC+0) when the plane lands?

12:30 p.m. London time

500

A movie starts at 8:35 p.m. and runs for 2 hr 50 min. What time does it finish (24-hour time)?

2325 (11:25 p.m.)

500

A marathon begins at 7:15 a.m. and the winner finishes at 10:47 a.m. How long did it take them?

3 hrs 32 min

500

Difference between 11:20 p.m. and 7:05 a.m. the next day?

7 hrs 45 min

500

A flight departs Los Angeles at 10:00 a.m. (UTC−8) and lands in Auckland 13 hours later. What is the local Auckland time when it lands (UTC+13)?

12:00 noon next day

500

A pilot flies from Dubai (UTC+4) to Sydney (UTC+10). Flight time: 13 hr 30 min. If the plane departs at 8:15 a.m. Dubai time, what is the Sydney local arrival time?

9:45 p.m. Sydney time

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