Definition of round or around the clock in English:

round (or around) the clock

All day and all night: I’ve got a team working around the clock [as adjective]: round-the-clock surveillance
More example sentences
  • Meanwhile Glasgow City Council has pledged that staff will continue to work around the clock to ease road and footpath problems.
  • We fought around the clock and continued to support the Marines as they cleared houses.
  • The second day, we could have legitimately reported flights were taking off round the clock day and night.
See parent entry: clock

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Word of the day oleaginous
Pronunciation: ˌəʊlɪˈadʒɪnəs
rich in, covered with, or producing oil; oily