Express 9.30 p.m. using the 24-hour clock.
21 30
Express 17 15 using the 12-hour clock.
5.15 p.m.
Sally started doing her homework at 14 35.
She took 1 h 15 min to finish her homework.
What time did Sally finish her homework
15 50
Jane took 3 h 35 min to complete a puzzle.
She finished it at 02 55.
What time did Jane start working on the puzzle?
23 20
David attended a party.
The party started at 21 35 on Friday and ended at 00 30 the next day.
How long was the party?
2 hours 55 min
Amy’s test ended at 12 10.
She finished the test in 1 h 25 min.
What time did Amy start her test?
10 45
Susan started on her Mathematics practice paper at 09 30. She took 2 minutes each for the 15 multiple-choice questions. She took 3 minutes each for the 15 short-answer questions. What time did Susan complete the paper?
10 45
When it was 13 20 in Singapore, it was 07 20 in Amsterdam. At 05 45 on Tuesday in Singapore, Mr Lee made a call to Amsterdam. What time and day would it be in Amsterdam?
23 45