411 REFERENCE · Wiktionary
24/5
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
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Etymology
Shortened from “twenty-four hours a day, five days a week”. Variant of en 24/7.
Adverb
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24 hours per day, five days per week (implicitly weekdays: Monday through Friday). Designates a round-the-clock service during the week, but excluding weekends.