Definition of 'round the clock/around the clock' If something is done round the clock or around the clock, it is done all day and all night without stopping. Rescue services have been working round the clock to free stranded motorists. We can't afford to give you around-the-clock protection.

If the clock does not run, move the minute hand back half an hour and forward to the hour and let it cuckoo. Set the pendulum swinging again. If the clock does not run, wind the weights fully and check the chains for any kinks that may have prevented the weights from coming down properly.