Telling Time!!! Using a.m./ p.m. 24 hour clocks There are 24 hours in a day…

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Presentation transcript:

Telling Time!!! Using a.m./ p.m. 24 hour clocks There are 24 hours in a day…

Language of time 12 hour time / 24 hour time digital analog timetable / calendar (middle) midnight / midday = noon am = first 12 hours of the day pm = next 12 hours of the day h = hours min = minutes notation = way of writing something down – the writing ‘style’ you use convert / conversion = change 24 Hour time - Activity 1 2

12 hour time 24 hour time 24 Hour time - Activity Hour time ‘names’ each hour. A.M or P.M Or

Some important things to know about 24 hour time…… -24 hour time uses numbers only to show the time. 24 hour time does not use am or pm. To convert times from p.m to 24 hour you only need to add 12. To convert from 24 hour to p.m you subtract Hour time - Activity 1 4

24 hour time shows the hours & minutes since midnight A “24 hour clock” identifies the time without the use of AM/PM information that is used in a “12 hour clock”. (e.g.: 11:00am = 11:00). 24 hour time is useful in military, travel and medical industries to avoid confusion.

Converting from 12 hour time to 24 hour time

The end of the show

12 hour time24 Hour time 2 am 2 pm 11 am 11 pm Use the clock face to convert the following times: 24 hour time12 Hour time Hour time - Activity 1 8

Defence forces Transportation Doctors Who would use 24 hr time ? 24 Hour time - Activity 1 9

There are 24 hours in a day…