24-hour clocks

A 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.

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Meanings

noun
  1. pluralplural of 24-hour clock
Cite this entry
APA

24-hour clocks. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/24-hour%20clocks

MLA

“24-hour clocks.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/24-hour%20clocks. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “24-hour clocks,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/24-hour%20clocks.

Source: 24-hour clocks on Wiktionary, CC BY-SA 4.0.