adv. phr. For 24 hours a day continuously all day and all night. The factory operated around the clock until the order was filled. He studied around the clock for his history exam. round-the-clock adj. That filling station has round-the-clock service.
AROUND THE CLOCK
Meaning of AROUND THE CLOCK in English
American idioms English vocabulary. Английский словарь американских идиом. 2012