He arrived at the party a clock.

I have always been fascinated by cuckoo clocks.

I have three wall clocks in my living room.

Our biological clocks regulate our sleep-wake cycles.

Water clocks were used in ancient civilizations to measure time.

I have two analog clocks in my living room.

The time clocks in the office need to be synchronized.

The punch clocks in the office are used to track employees' working hours.

I have two quartz clocks in my living room.

Scientists use atomic clocks to measure time with extreme precision.