Time Detectives: Reading Clocks and Measuring Time
Year 3 | Ages 7–8 | Beginner
Instructions: Work through the activities in order. Read each clock carefully: the long hand shows minutes and the short hand shows hours. Write your answers in the boxes, and remember to include a.m. or p.m. where asked.
Read the Analogue Clocks
Read each clock to the nearest minute. The minute hand points to the minute marks around the face. Write the time using digits, such as 4:17.
Roman Numerals on the Clock
These clock faces use Roman numerals. Remember: I = 1, V = 5, and X = 10. Read each clock to the nearest minute and write the time using digits.
12-hour and 24-hour Time
Convert each time as requested. For a.m. and p.m. times, remember that 12:00 a.m. is midnight and 12:00 p.m. is noon.
1. Write 7:25 a.m. in 24-hour time.
2. Write 16:40 in 12-hour time, including a.m. or p.m.
3. Write 12:00 p.m. as noon or midnight.
4. Write 00:00 as noon or midnight.
5. Write 8:05 p.m. in 24-hour time.
Seconds, Months and Years
Use your time knowledge to complete each question. A leap year has 366 days. Write one answer in each box.
1. How many seconds are in 1 minute?
2. How many days are in April?
3. How many days are in February in a usual year?
4. How many days are in February in a leap year?
5. How many days are in a leap year?
Compare Event Durations
Work out how long each event lasted, then compare the durations. Write the longer event's name in the box. If they lasted the same time, write “same”.
1. A lesson lasts from 9:10 a.m. to 9:50 a.m. A reading session lasts from 10:05 a.m. to 10:35 a.m. Which lasts longer?
2. A bus journey lasts from 2:15 p.m. to 2:45 p.m. A swim lasts from 3:00 p.m. to 3:40 p.m. Which lasts longer?
3. A film lasts from 1:20 p.m. to 2:05 p.m. A game lasts from 4:10 p.m. to 4:55 p.m. Which lasts longer, or are they the same?
4. Breakfast lasts from 8:00 a.m. to 8:20 a.m. A walk lasts from 8:30 a.m. to 9:05 a.m. Which lasts longer?
Activity 1: 2:17 ; 5:42 ; 8:06 ; 11:53
Activity 2: 3:15 ; 6:28 ; 9:04 ; 12:39
Activity 3: 07:25 ; 4:40 p.m. ; noon ; midnight ; 20:05
Activity 4: 60 ; 30 ; 28 ; 29 ; 366
Activity 5: Lesson ; Swim ; same ; Walk
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