They work around the clock; rush into the jungle whenever they heard a gun shot.
In order to finish this large project I had to work around the clock for several days.
They were willing to work around the clock, sleep in the office and battle each other over strategy and technical decisions.
Our enemies are at work around the clock and around the globe looking for ways to steal information, disrupt business, extort money and maliciously interfere with normal daily life.
