24-hour clock

English dictionary entry

Meanings

noun
  1. 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

/ˌtwɛntiˈfɔːɹˌaʊə ˈklɒk/ LL-Q1860 (eng)-Vealhurl-24-hour clock.wav /ˌtwɛntiˈfɔɹˌaʊəɹ ˈklɔk/ [-ɾi-] /-ˈklɑk/

Word forms

24-hour clock 24-hour clocks twenty-four hour clock twenty-four-hour clock

Etymology

From 24 + hour + clock.

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