MA3-NSM-02, 12- and 24-hour time
Stage 3 (Years 5 and 6) · Mathematics · Non-spatial measure
Measures and compares durations using 12- and 24-hour time and am and pm notation.
MA3-NSM-02 is an outcome from the NESA Mathematics K-10 Syllabus (2022), taught in NSW schools. Because Stage 3 spans Years 5 and 6, the worksheets below come from Year 5 and Year 6. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.
Teaching guide
Measures and compares durations using 12- and 24-hour time and am and pm notation.
Line up 12- and 24-hour time: after midday, add 12 to the hour (1 pm = 13:00); midnight is 00:00, midday is 12:00. Practise converting both directions.
Generated and checked in code, so it is correct.
Adding 12 to morning (am) times, and mishandling 12 am (→ 00:00) and 12 pm (stays 12:00).
12 & 24 Hour Time worksheets
All 12 & 24 hour time worksheets →Elapsed Time worksheets
All elapsed time worksheets →Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.
NSW syllabus outcomes (c) NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales. The outcome code is cited as published; the description above is paraphrased in our own words. See the official Mathematics K-10 Syllabus on the NSW Curriculum website.