Year 4 Time: Convert between 12 and 24 hour clocks: analogue and digital worksheet

“Reading 12 and 24 hour times” is free to print, with no account. It is the first sheet in the Year 4 maths unit “Time: Convert between 12 and 24 hour clocks: analogue and digital”, for children aged 8 to 9, and takes about 20 minutes.

Print it on A4. The child's pages come first; the answers, and what each wrong answer tells you, are on the grown-up page that follows. Weeks 33 to 34 of the year, 5 sheets in the unit.

Free sample · answers on the last page

Reading 12 and 24 hour times

Name: ____________ · Date: ____________
Year 4 · Maths · about 20 minutes
Answers are on the grown-up page

Today I can read times on 12-hour and 24-hour clocks, including midday and midnight.

A Look back3 min

1.
Which time does this clock show? Circle one.
4:255:204:059:20
2.
5, 10, 15, , 25. What number is missing?
3.
The first half of a day has 12 hours. The second half has 12 hours too. How many hours are in one day?

B Watch me, then you4 min

Watch me

The short hand is just past 7 and the long hand is on 3. That is 15 minutes past 7.

It is in the morning, so it is 7:15 a.m.

On a 24-hour clock, 7:15 a.m. gets a 0 in front: 07:15. At 7:15 p.m., add 12 to the hour: 19:15.

Now you

1.
This clock shows twenty to ten at night. Circle the 24-hour time.
21:4009:4021:0810:20

C Your turn6 min

Each clock shows one time. Circle the matching 24-hour time.

1.
This clock shows 3:15 in the afternoon. Circle the 24-hour time.
15:1503:1513:1503:51
2.
This clock shows 11:45 at night. Circle the 24-hour time.
23:4511:4513:4523:11
3.
This clock shows 12 o’clock in the middle of the day. Circle the 24-hour time.
12:1200:0001:2012:00
4.
This clock shows 12 o’clock at night. Circle the 24-hour time.
12:0000:0012:1201:20

Say it out loud: The last two clocks look the same. What told you which 24-hour time to pick?

D Spot the mistake3 min

Ali says: “Midday is 00:00 on a 24-hour clock, so 12:00 must be midnight.”

1.
Ali is wrong. Circle the correct 24-hour time for midday.
00:0012:00

E Think deeper3 min

1.
Mia says 00:45 is 12:45 p.m. Is she right? Explain how you know, and write the correct 12-hour time.

How did it feel?

I can do it Nearly Not yet

For the grown-up

Reading 12 and 24 hour times · 2 minutes to read

Answers, and what a wrong one tells you

A

1. 4:25

2. 20

3. 24

B

1. 21:40

C

1. 15:15 If your child picks 03:15, they have kept the 12-hour number. For afternoon times, add 12 to the hour.

2. 23:45 If your child picks 11:45, they have not changed it for the night. Ask: is this before or after midday? Then add 12 to the hour.

3. 12:00 If your child picks 00:00, they have mixed up midday with midnight. Midday is 12:00, halfway through the day.

4. 00:00 If your child picks 12:00, they have kept midday. At night, 12 o’clock is midnight, the start of a new day.

D

1. 12:00 If your child circles 00:00, they have swapped midday and midnight. 00:00 is the start of the day, and midday is 12:00.

E

1. Look for: No, 00:45 is 12:45 a.m. because 00:00 is midnight, the start of the day, so it is not p.m. If your child writes 12:45 p.m., ask what happens just after midnight. Times before midday are a.m., even when they look like 12.

Words to use

Say“Find the hour first, then ask: is this before or after midday?”

Instead of“Just say ‘it’s nine o’clock’ and skip whether it is morning or night.”

After the sheet

Look at the microwave or oven clock. Say the time two ways, 12-hour with a.m. or p.m. and 24-hour, then check which is which.

Tick what your child got right in StudyDen. Anything missed comes back in a later Look back box, so there's no need to redo the sheet.

The rest of this unit

4 more sheets come with a StudyDen plan, in teaching order:

Clocks: 12 and 24 hour(with a plan)
Hours, minutes and seconds(with a plan)
Days, weeks, months and years(with a plan)
Working out how long(with a plan)

Every Year 4 maths worksheet

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