Mathematics for IGCSE & O level - Time (Section 2 - No. 19)

What is the 12-hour clock format for 23:40?
11:40 a.m.
11:40 p.m.
12:40 a.m.
12:40 p.m.

Explanation

Subtract 12 from the 24-hour time (23-12 = 11) and add p.m.

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