Let’s solve each problem step by step. We’re finding how much time has passed between two times — that’s called “elapsed time.”
We’ll break it down into hours and minutes, then add them up.
---
1) 4:00 P.M. to 8:46 P.M.
From 4:00 to 8:00 is 4 hours.
Then from 8:00 to 8:46 is 46 minutes.
→
4 hours 46 minutes
---
2) 4:20 P.M. to 8:00 P.M.
From 4:20 to 5:00 = 40 minutes
From 5:00 to 8:00 = 3 hours
Total →
3 hours 40 minutes
*(Check: 4:20 + 3h40m = 8:00 ✔️)*
---
3) 5:20 A.M. to 10:09 A.M.
From 5:20 to 10:20 would be 5 hours, but we stop at 10:09 — so subtract 11 minutes.
Better way:
From 5:20 to 10:00 = 4 hours 40 minutes
Then +9 minutes → 4h49m? Wait — let’s do it cleanly:
From 5:20 to 6:00 = 40 min
6:00 to 10:00 = 4 hours
10:00 to 10:09 = 9 min
Total: 4h + 40m + 9m =
4 hours 49 minutes
---
4) 8:40 P.M. to 10:02 P.M.
From 8:40 to 9:00 = 20 min
9:00 to 10:00 = 1 hour
10:00 to 10:02 = 2 min
Total: 1h + 20m + 2m =
1 hour 22 minutes
---
5) 6:40 A.M. to 8:51 A.M.
From 6:40 to 7:00 = 20 min
7:00 to 8:00 = 1 hour
8:00 to 8:51 = 51 min
Total: 1h + 20m + 51m = 1h 71m → 71 min = 1h11m → total
2 hours 11 minutes
*(Check: 6:40 + 2h11m = 8:51 ✔️)*
---
6) 1:00 P.M. to 2:31 P.M.
Straightforward: 1 hour 31 minutes
→
1 hour 31 minutes
---
7) 1:00 A.M. to 5:21 A.M.
From 1:00 to 5:00 = 4 hours
+21 minutes →
4 hours 21 minutes
---
8) 2:40 A.M. to 6:21 A.M.
From 2:40 to 3:00 = 20 min
3:00 to 6:00 = 3 hours
6:00 to 6:21 = 21 min
Total: 3h + 20m + 21m =
3 hours 41 minutes
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9) 12:20 P.M. to 4:44 P.M.
From 12:20 to 1:00 = 40 min
1:00 to 4:00 = 3 hours
4:00 to 4:44 = 44 min
Total: 3h + 40m + 44m = 3h 84m → 84m = 1h24m → total
4 hours 24 minutes
*(Check: 12:20 + 4h24m = 4:44 ✔️)*
---
10) 5:00 A.M. to 6:19 A.M.
1 hour 19 minutes
→
1 hour 19 minutes
---
11) 8:40 A.M. to 10:19 A.M.
From 8:40 to 9:00 = 20 min
9:00 to 10:00 = 1 hour
10:00 to 10:19 = 19 min
Total: 1h + 20m + 19m =
1 hour 39 minutes
---
12) 5:20 A.M. to 9:00 A.M.
From 5:20 to 6:00 = 40 min
6:00 to 9:00 = 3 hours
Total:
3 hours 40 minutes
---
13) 6:00 P.M. to 8:56 P.M.
From 6:00 to 8:00 = 2 hours
8:00 to 8:56 = 56 min
→
2 hours 56 minutes
---
14) 6:20 A.M. to 9:42 A.M.
From 6:20 to 7:00 = 40 min
7:00 to 9:00 = 2 hours
9:00 to 9:42 = 42 min
Total: 2h + 40m + 42m = 2h 82m → 82m = 1h22m → total
3 hours 22 minutes
*(Check: 6:20 + 3h22m = 9:42 ✔️)*
---
15) 2:40 P.M. to 5:20 P.M.
From 2:40 to 3:00 = 20 min
3:00 to 5:00 = 2 hours
5:00 to 5:20 = 20 min
Total: 2h + 20m + 20m =
2 hours 40 minutes
*(Check: 2:40 + 2h40m = 5:20 ✔️)*
---
Final Answer:
1) 4 hours 46 minutes
2) 3 hours 40 minutes
3) 4 hours 49 minutes
4) 1 hour 22 minutes
5) 2 hours 11 minutes
6) 1 hour 31 minutes
7) 4 hours 21 minutes
8) 3 hours 41 minutes
9) 4 hours 24 minutes
10) 1 hour 19 minutes
11) 1 hour 39 minutes
12) 3 hours 40 minutes
13) 2 hours 56 minutes
14) 3 hours 22 minutes
15) 2 hours 40 minutes
Parent Tip: Review the logic above to help your child master the concept of elapsed time worksheet free.
