twenty-four-hour clock
Meanings
noun
- Alternative form of 24-hour clock (“a timekeeping convention in which the 24 hours of the day are treated as a single period rather than two sets of 12 hours, with the result that midnight is indicated as 00:00 (or sometimes 24:00), and the hours from 1:00 to 11:00 p.m. as 13:00 to 23:00”).
Pronunciation
Word forms
Etymology
From twenty-four + hour + clock.
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