lesson
Morning or afternoon?
1 · Learn
A 12-hour clock repeats its numbers twice each day. Am and pm help distinguish the two halves. A 24-hour clock counts from 00:00 to 23:59.
After midday, add 12 to the hour number for 1 pm to 11 pm. Thus 4 pm is 16:00. Noon is 12:00; midnight at the start of a day is 00:00.
2 · Worked example
I convert 3:25 pm to 15:25. I keep the minutes the same and add twelve to the hour.
3 · Your turn
Write 6:10 pm in 24-hour time. Is 08:30 morning or evening?
Check your answer
18:10; 08:30 is in the morning.
4 · Apply your learning
Compare a familiar daily timetable written in both formats. Include noon and midnight carefully.
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Use objects or a drawn model before relying on a rule. Explain each step, check the units and revisit with varied examples. An adult can read the instructions without supplying the answer.
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