This educational worksheet helps students master elapsed time by solving visual clock problems and answering word problems about daily activities.
Math worksheet titled Elapsed Time featuring clock faces and word problems for students to calculate duration.
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Show Answer Key & Explanations
Step-by-step solution for: Elapsed time | 4th grade Math Worksheet | GreatSchools
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Show Answer Key & Explanations
Step-by-step solution for: Elapsed time | 4th grade Math Worksheet | GreatSchools
Let’s solve each problem step by step.
---
Problem 1: Write the correct time in the box.
We are given four clocks and need to read them.
- First clock: Hour hand between 6 and 7, minute hand on 9 → 45 minutes past 6 → 6:45
- Second clock: Hour hand just past 11, minute hand on 2 → 10 minutes past 11 → 11:10
- Third clock: Hour hand between 12 and 1, minute hand on 8 → 40 minutes past 12 → 12:40
- Fourth clock: Hour hand just past 1, minute hand on 3 → 15 minutes past 1 → 1:15
✔ All times match what’s written — no correction needed. The student already filled these correctly.
---
Problem 2: Connor’s bus journey
Bus leaves at 8:50 A.M., ends at 9:20 A.M.
From 8:50 to 9:00 = 10 minutes
From 9:00 to 9:20 = 20 minutes
Total = 10 + 20 = 30 minutes
But wait — let’s check again:
8:50 to 9:20 is exactly 30 minutes? Let’s count:
8:50 → 8:51 (1), ..., 8:59 (9), 9:00 (10), then 9:01 to 9:20 is 20 more → total 30 minutes.
Wait — but the image says “2 hours and 40 minutes” is crossed out? That can’t be right for this short trip.
Actually, looking back — maybe I misread. The problem says:
> Connor’s bus journey starts at 8:50 A.M. and ends at 9:20 A.M. How long does it take?
That’s only 30 minutes. But perhaps there’s a typo or misunderstanding? No — 8:50 to 9:20 is definitely 30 minutes.
Wait — maybe the original answer was wrong? The image shows “2 hours and 40 minutes” with a cross — so that’s incorrect. Correct answer is 30 minutes.
But let me double-check: From 8:50 to 9:50 would be 1 hour. So to 9:20 is less than an hour — yes, 30 minutes.
✔ Final answer for this part: 30 minutes
---
Problem 3: Ship sailing
Starts at 10:20 A.M., docks at 3 P.M.
From 10:20 A.M. to 12:20 P.M. = 2 hours
From 12:20 P.M. to 3:00 P.M. = 2 hours 40 minutes? Wait — better way:
From 10:20 A.M. to 3:00 P.M.
Break it down:
10:20 A.M. to 12:20 P.M. → 2 hours
12:20 P.M. to 3:00 P.M. → 2 hours 40 minutes? No:
From 12:20 to 1:20 = 1 hour
1:20 to 2:20 = 1 hour
2:20 to 3:00 = 40 minutes
So total from 12:20 to 3:00 = 2 hours 40 minutes
Then add first 2 hours → total 4 hours 40 minutes? That seems too long.
Wait — simpler method:
Convert both to 24-hour or just count hours.
From 10:20 A.M. to 3:00 P.M. is:
10:20 to 11:20 → 1 hr
11:20 to 12:20 → 1 hr
12:20 to 1:20 → 1 hr
1:20 to 2:20 → 1 hr
2:20 to 3:00 → 40 min
Total: 4 hours 40 minutes? But that doesn’t feel right because 10:20 to 3:00 should be 4 hours 40 minutes? Let’s calculate numerically.
3:00 P.M. is 15:00
10:20 A.M. is 10:20
15:00 - 10:20 = ?
15:00 minus 10:00 = 5 hours
But we subtracted 20 extra minutes? No:
Better: 15:00 - 10:20
Think: from 10:20 to 15:20 is 5 hours, but we want to 15:00, so subtract 20 minutes → 4 hours 40 minutes.
Yes — 4 hours 40 minutes
But let me verify with another way:
From 10:20 to 12:20 = 2 hours
From 12:20 to 3:00 = 2 hours 40 minutes? 12:20 to 2:20 is 2 hours, 2:20 to 3:00 is 40 min → yes, 2h40m
Total: 2h + 2h40m = 4h40m
✔ Answer: 4 hours and 40 minutes
---
Problem 4: Movie start and end
Starts at 6:25 P.M., ends at 8:15 P.M.
From 6:25 to 7:25 = 1 hour
From 7:25 to 8:15 = 50 minutes (because 7:25 to 8:25 is 1 hour, so to 8:15 is 50 min)
Total: 1 hour + 50 minutes = 1 hour 50 minutes
Check: 6:25 to 8:25 is 2 hours, so to 8:15 is 10 minutes less → 1 hour 50 minutes. Yes.
✔ Answer: 1 hour and 50 minutes
---
Problem 5: Walk around park
Starts at 9 A.M., takes 1 hour 30 minutes.
9:00 + 1 hour = 10:00
10:00 + 30 minutes = 10:30
✔ Finish time: 10:30 A.M.
---
Problem 6: Rocket launch program
Starts at 11:30 P.M., lasts 1 hour 15 minutes.
11:30 P.M. + 1 hour = 12:30 A.M. (next day)
12:30 A.M. + 15 minutes = 12:45 A.M.
✔ End time: 12:45 A.M.
---
Problem 7: Max painting porch
Started at 8:15 A.M., took 1 hour 15 minutes.
8:15 + 1 hour = 9:15
9:15 + 15 minutes = 9:30 A.M.
✔ Finished at: 9:30 A.M.
---
Now, compiling all answers as per worksheet order:
1. Clock times: Already correct — 6:45, 11:10, 12:40, 1:15
2. Bus journey: 30 minutes
3. Ship sail: 4 hours 40 minutes
4. Movie: 1 hour 50 minutes
5. Walk finish: 10:30 A.M.
6. Rocket end: 12:45 A.M.
7. Painting finish: 9:30 A.M.
Note: In the image, some answers were pre-filled or crossed out — we’re providing corrected/verified answers.
Final Answer:
For the bus journey: 30 minutes
Ship duration: 4 hours and 40 minutes
Movie length: 1 hour and 50 minutes
Walk finish time: 10:30 A.M.
Rocket program end: 12:45 A.M.
Painting finish: 9:30 A.M.
(Clock times are already correct as shown.)
Since the question asks to "solve the problem accurately" and the worksheet has multiple parts, here are the final answers for each blank:
──────────────────────────────────────
Final Answer:
Bus journey: 30 minutes
Ship duration: 4 hours and 40 minutes
Movie length: 1 hour and 50 minutes
Walk finish: 10:30 A.M.
Rocket end: 12:45 A.M.
Painting finish: 9:30 A.M.
---
Problem 1: Write the correct time in the box.
We are given four clocks and need to read them.
- First clock: Hour hand between 6 and 7, minute hand on 9 → 45 minutes past 6 → 6:45
- Second clock: Hour hand just past 11, minute hand on 2 → 10 minutes past 11 → 11:10
- Third clock: Hour hand between 12 and 1, minute hand on 8 → 40 minutes past 12 → 12:40
- Fourth clock: Hour hand just past 1, minute hand on 3 → 15 minutes past 1 → 1:15
✔ All times match what’s written — no correction needed. The student already filled these correctly.
---
Problem 2: Connor’s bus journey
Bus leaves at 8:50 A.M., ends at 9:20 A.M.
From 8:50 to 9:00 = 10 minutes
From 9:00 to 9:20 = 20 minutes
Total = 10 + 20 = 30 minutes
But wait — let’s check again:
8:50 to 9:20 is exactly 30 minutes? Let’s count:
8:50 → 8:51 (1), ..., 8:59 (9), 9:00 (10), then 9:01 to 9:20 is 20 more → total 30 minutes.
Wait — but the image says “2 hours and 40 minutes” is crossed out? That can’t be right for this short trip.
Actually, looking back — maybe I misread. The problem says:
> Connor’s bus journey starts at 8:50 A.M. and ends at 9:20 A.M. How long does it take?
That’s only 30 minutes. But perhaps there’s a typo or misunderstanding? No — 8:50 to 9:20 is definitely 30 minutes.
Wait — maybe the original answer was wrong? The image shows “2 hours and 40 minutes” with a cross — so that’s incorrect. Correct answer is 30 minutes.
But let me double-check: From 8:50 to 9:50 would be 1 hour. So to 9:20 is less than an hour — yes, 30 minutes.
✔ Final answer for this part: 30 minutes
---
Problem 3: Ship sailing
Starts at 10:20 A.M., docks at 3 P.M.
From 10:20 A.M. to 12:20 P.M. = 2 hours
From 12:20 P.M. to 3:00 P.M. = 2 hours 40 minutes? Wait — better way:
From 10:20 A.M. to 3:00 P.M.
Break it down:
10:20 A.M. to 12:20 P.M. → 2 hours
12:20 P.M. to 3:00 P.M. → 2 hours 40 minutes? No:
From 12:20 to 1:20 = 1 hour
1:20 to 2:20 = 1 hour
2:20 to 3:00 = 40 minutes
So total from 12:20 to 3:00 = 2 hours 40 minutes
Then add first 2 hours → total 4 hours 40 minutes? That seems too long.
Wait — simpler method:
Convert both to 24-hour or just count hours.
From 10:20 A.M. to 3:00 P.M. is:
10:20 to 11:20 → 1 hr
11:20 to 12:20 → 1 hr
12:20 to 1:20 → 1 hr
1:20 to 2:20 → 1 hr
2:20 to 3:00 → 40 min
Total: 4 hours 40 minutes? But that doesn’t feel right because 10:20 to 3:00 should be 4 hours 40 minutes? Let’s calculate numerically.
3:00 P.M. is 15:00
10:20 A.M. is 10:20
15:00 - 10:20 = ?
15:00 minus 10:00 = 5 hours
But we subtracted 20 extra minutes? No:
Better: 15:00 - 10:20
Think: from 10:20 to 15:20 is 5 hours, but we want to 15:00, so subtract 20 minutes → 4 hours 40 minutes.
Yes — 4 hours 40 minutes
But let me verify with another way:
From 10:20 to 12:20 = 2 hours
From 12:20 to 3:00 = 2 hours 40 minutes? 12:20 to 2:20 is 2 hours, 2:20 to 3:00 is 40 min → yes, 2h40m
Total: 2h + 2h40m = 4h40m
✔ Answer: 4 hours and 40 minutes
---
Problem 4: Movie start and end
Starts at 6:25 P.M., ends at 8:15 P.M.
From 6:25 to 7:25 = 1 hour
From 7:25 to 8:15 = 50 minutes (because 7:25 to 8:25 is 1 hour, so to 8:15 is 50 min)
Total: 1 hour + 50 minutes = 1 hour 50 minutes
Check: 6:25 to 8:25 is 2 hours, so to 8:15 is 10 minutes less → 1 hour 50 minutes. Yes.
✔ Answer: 1 hour and 50 minutes
---
Problem 5: Walk around park
Starts at 9 A.M., takes 1 hour 30 minutes.
9:00 + 1 hour = 10:00
10:00 + 30 minutes = 10:30
✔ Finish time: 10:30 A.M.
---
Problem 6: Rocket launch program
Starts at 11:30 P.M., lasts 1 hour 15 minutes.
11:30 P.M. + 1 hour = 12:30 A.M. (next day)
12:30 A.M. + 15 minutes = 12:45 A.M.
✔ End time: 12:45 A.M.
---
Problem 7: Max painting porch
Started at 8:15 A.M., took 1 hour 15 minutes.
8:15 + 1 hour = 9:15
9:15 + 15 minutes = 9:30 A.M.
✔ Finished at: 9:30 A.M.
---
Now, compiling all answers as per worksheet order:
1. Clock times: Already correct — 6:45, 11:10, 12:40, 1:15
2. Bus journey: 30 minutes
3. Ship sail: 4 hours 40 minutes
4. Movie: 1 hour 50 minutes
5. Walk finish: 10:30 A.M.
6. Rocket end: 12:45 A.M.
7. Painting finish: 9:30 A.M.
Note: In the image, some answers were pre-filled or crossed out — we’re providing corrected/verified answers.
Final Answer:
For the bus journey: 30 minutes
Ship duration: 4 hours and 40 minutes
Movie length: 1 hour and 50 minutes
Walk finish time: 10:30 A.M.
Rocket program end: 12:45 A.M.
Painting finish: 9:30 A.M.
(Clock times are already correct as shown.)
Since the question asks to "solve the problem accurately" and the worksheet has multiple parts, here are the final answers for each blank:
──────────────────────────────────────
Final Answer:
Bus journey: 30 minutes
Ship duration: 4 hours and 40 minutes
Movie length: 1 hour and 50 minutes
Walk finish: 10:30 A.M.
Rocket end: 12:45 A.M.
Painting finish: 9:30 A.M.
Parent Tip: Review the logic above to help your child master the concept of time elapsed worksheet 3rd.
