Using the 24-hour Clock: What's the Time?

In this worksheet, students add or subtract minutes to or from the given times, stating their answers in 24-hour clock time.

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Time and Timetables

Difficulty level:

QUESTION 1 of 10

Remember that 24 hour clock time uses 4 numbers separating the hours from the minutes with a : sign.

7.35 a.m. is 07:35

7.35 p.m. is 19:35

Example

What 24 hour time is 46 minutes after 7.35 p.m.?

We start at 7.00 p.m. and then add the two minutes numbers.

35 + 46 = 81 minutes.

81 minutes is 1 hour and 21 minutes.

1 hour and 21 minutes after 7.00 p.m. is 8.21 p.m.

8.21 p.m. is 20:21 in 24 hour clock time.

Write the following time in 24 hour clock format:

15 minutes after 8.35 a.m.

Write the following time in 24 hour clock format:

15 minutes after 8.35 p.m.

Write the following time in 24 hour clock format:

15 minutes before 8.35 p.m.

Write the following time in 24 hour clock format:

45 minutes before 8.35 p.m.

Write the following time in 24 hour clock format:

45 minutes before 8.05 a.m.

Write the following time in 24 hour clock format:

100 minutes before 8.05 a.m.

Write the following time in 24 hour clock format:

100 minutes after 8.45 p.m.

Write the following time in 24 hour clock format:

65 minutes after 10.45 p.m.

Write the following time in 24 hour clock format:

65 minutes before 10.25 p.m.

Write the following time in 24 hour clock format:

75 minutes before 1.05 a.m.

• Question 1

Write the following time in 24 hour clock format:

15 minutes after 8.35 a.m.

08:50
• Question 2

Write the following time in 24 hour clock format:

15 minutes after 8.35 p.m.

20:50
• Question 3

Write the following time in 24 hour clock format:

15 minutes before 8.35 p.m.

20:20
• Question 4

Write the following time in 24 hour clock format:

45 minutes before 8.35 p.m.

19:50
• Question 5

Write the following time in 24 hour clock format:

45 minutes before 8.05 a.m.

07:20
• Question 6

Write the following time in 24 hour clock format:

100 minutes before 8.05 a.m.

06:25
• Question 7

Write the following time in 24 hour clock format:

100 minutes after 8.45 p.m.

22:25
• Question 8

Write the following time in 24 hour clock format:

65 minutes after 10.45 p.m.

23:50
• Question 9

Write the following time in 24 hour clock format:

65 minutes before 10.25 p.m.

21:20
• Question 10

Write the following time in 24 hour clock format:

75 minutes before 1.05 a.m.

23:50
---- OR ----

Sign up for a £1 trial so you can track and measure your child's progress on this activity.

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started