This 11-plus Maths quiz about time is going to look at the 24 hour clock. This clock is used extensively, for example: in computers, in the military and in transport.
Using the 24 hour clock removes all possibility of making a mistake with the time, for example: 'Meet me at 6 o'clock'. Is that 6 o'clock in the morning or in the evening? The use of 'am' and 'pm' doesn't always help because not all people know what they mean: pm = post meridiem = between 12 noon and 12 midnight; am = ante meridiem = between 12 midnight and 12 noon.
Some adults find the 24 hour clock difficult to remember. 16:18 is not as easy as nearly twenty past four, is it? It is a useful thing to learn and you should find it easier than adults. Why? Because you have grown up with computers which always show the time in 24 hours.
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This is read as 'zero six thirty hours'. TIP: Between midnight and noon, you don't have to do any conversion, e.g. 5:40 am = 05:40
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This is read as 'nineteen hundred hours'. TIP: After 12 noon until midnight, you add 12 to the hour, e.g. 5:40 pm = 17:40
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This is read as 'zero six thirty-five hours'
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This is read as 'twenty-one hundred hours'
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This is read as 'eleven thirty hours'
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This is read as 'seventeen fifteen hours'
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This is read as 'sixteen hundred hours'
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This is read as 'twenty-two forty-five hours'
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This is read as 'zero three hundred fifteen hours'
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This is read as 'zero zero hundred hours'. Note: The day begins at midnight, and the last minute of the day begins at 23:59 and ends at 24:00 BUT this is shown as 00:00. Some people do use 24:00, for example: 'Open from 00:00 to 24:00' - this shows that the business is open for the whole 24 hour period. To use 'Open from 00:00 to 00:00' might be a bit confusing. In general, avoid using 24:00 when telling the time
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