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Clocks

Alarm clock
Type of clock
Atomic clock
Extremely accurate reference clock used as standard for timekeeping
Clock Face, St Helens
Village in England
Digital clock
Type of clock that displays the time with numbers
Hourglass
Device using the flow of a substance to measure time
Pendulum
Mechanism for regulating the speed of clocks
Pendulum clock
Clock regulated by a pendulum
Pocket watch
Timepiece designed to be carried in the user's pocket
Quartz clock
Clock type
Stopwatch
Handheld timepiece designed to measure an amount time
Sundial
Device that tells the time of day by the apparent position of the Sun in the sky
Watch
Personal timepiece
Water clock
Time piece in which time is measured by the flow of liquid into or out of a vessel