3.04 12 and 24-hour time
Convert the following times:
9 days to hours.
11 minutes to seconds.
36 hours to minutes.
24 hours to seconds.
240 seconds to minutes.
360 minutes to hours.
780 seconds to minutes.
780 minutes to hours.
Convert the following times:
05:30 to 12 hour time.
18:30 to 12 hour time.
10:30 am to 24 hour time.
9:15 pm to 24 hour time.
00:45 to 12 hour time.
13:59 to 12 hour time.
8:40 am to 24 hour time.
7:25 pm to 24 hour time.
Find the following times:
30 minutes after 9:30 am.
30 minutes after 11:40 pm.
9:30 am plus half an hour.
7:00 pm plus 24 minutes.
45 minutes after 11:20 am.
20 minutes after 3:50 pm.
10:30 am plus two and a half hours.
9:10 pm plus 63 minutes.
Find the time and day that is represented by the following:
19 hours and 20 minutes after 20:15 on Thursday.
17 hours and 15 minutes before 15:25 on Thursday.
22 hours and 58 minutes after 19:25 on Monday.
18 hours and 39 minutes before 14:12 on Monday.
Saturday 13:15 - 15 hours 18 minutes
Thursday 13:20 + 21 hours 59 minutes
Evaluate the following in hours and minutes:
11 hours - 43 minutes
11 hours 16 minutes - 5 hours
5 hours 10 minutes + 20 minutes
4 hours 10 minutes - 35 minutes
3 hours 3 minutes + 3 hours 29 minutes
3 hours 20 minutes - 2 hours 10 minutes
2 hours 50 minutes + 3 hours 40 minutes
6 hours 10 minutes - 2 hours 30 minutes
7 hours 7 minutes + 11 hours 34 minutes
7 hours 59 minutes + 12 hours 11 minutes
10 hours 33 minutes - 7 hours 57 minutes
10 hours 43 minutes - 2 hours 29 minutes
How many hours are there in a non-leap year?
Kate leaves her home at 11:15 am to visit her grandmother in a different state. She arrives at her grandmother's house at 5: 15 pm. How long was Kate's trip in hours?
A taxi departs at 13:32 from Sydney and arrives at 20:14 at Melbourne. How long did the taxi take for the trip?
Neil's swimming lesson went from 11:15 until midday. How many minutes was Neil's lesson?
A YouTube video started playing at 1:40 pm and finished at 2:18 pm. How long is the video in minutes?
A song clip starts playing at 7:55 pm and finished at 8:11 pm. How long is the song clip in minutes?
Sally's cruise ticket says that it "begins at 10:00 am and ends at 2:00 pm. How long is the cruise in hours?
James leaves home at 4:00 pm and gets home at 8:00 pm. How many hours was James out?
Today is Dave's birthday and he just turned 9 years old.
Find his age in days. Assume there are 365 days in a year.
Find his age in hours.
Find his age in minutes.
Find his age in seconds.
The average person sleeps for 8 hours a night. How many weeks does the average person spend asleep over 5 years? Assume there are 365.25 days in a year. Give your answer to the nearest week.
If an average person showers for 6 minutes per day, find how many hours they spend showering in:
One year (assume non-leap year).
55 years (ignoring leap-years).
A train ride between two cities takes 6 hours and 49 minutes. If you leave one city at 21:40, at what time will you arrive at the other city? Express your answer in 24-hour time.
A ship arrives at 17:28 at Melbourne. If the trip took 2 hours and 16 minutes, at what time did the ship depart from Sydney? Express your answer in 24-hour time.
Eileen starts watching a movie at 11:15 am, which goes for 3 hours and 45 minutes.
What time will the movie finish?
A computer starts updating at 1:00 pm. The update will go for 130 minutes. Find the time that the update will be finished.