be watching the clock

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

be watching the clock idiom ( also have/keep your eye on the clock )
to be looking to see what the time is, usually because you are bored or eager to leave
• I had a train to catch, so I was watching the clock all through the meeting.
Thesaurus⁺: ↑Using the eyes ↑Eyesight, glasses and lenses ↑The eye and surrounding area ↑Perceptive ↑Bore and bored
Main entry: clock_idiom