24-7

twenty-four seven

All day, every day. Short for "twenty-four hours a day, seven days a week." Another hyphen can be used between "four" and "seven" if used as a modifier before a noun. Often written as 24/7. You know you can call me twenty-four seven if you ever need anything, OK? It's the only shop in the entire city that's open 24/7. We offer twenty-four-seven customer support for anyone whose credit card is lost, stolen, or locked.
See also: seven
Farlex Dictionary of Idioms.

24-7

verb
See twenty-four, seven
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • from one day to the next
  • face the day
  • fail
  • day in, day out, every day without fail
  • by night
  • by day
  • just another day at the office
  • day in and day out
  • day in, day out
  • all day and every day
References in periodicals archive
Raouf Khalil, founder and CEO, Mobile Doctors 24-7, said: "This is a critically important step forward in scaling our true healthcare solution that aligns both consumers and payers."
"The combination of our one of a kind delivery system with the support of KBBO Group and its strong presence in the healthcare sector assures MD 24-7 future is in good hands," he said.
MD 24-7 is designed to provide integrated concierge health care services at the time and place of consumers' choice as well as insuring appropriate level of care on behalf of the payers, it stated.