AC9M5M03 • Year 5 Maths

12-hour and 24-hour Time (AC9M5M03)

compare 12- and 24-hour time systems and solve practical problems involving the conversion between them

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Unit focus

  • Students convert times around noon and midnight, read schedules and calculate elapsed time using timelines while distinguishing a clock time from a duration.
  • Use this routine: Represent → Reason → Calculate → Interpret → Verify.
  • Watch for 12 am and 12 pm reversed: 12 am is midnight; 12 pm is noon.
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