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Timekeeping

Alarm clock
Type of clock
April
Fourth month in the Julian and Gregorian calendars
Atomic clock
Extremely accurate reference clock used as standard for timekeeping
August
Eighth month in the Julian and Gregorian calendars
Calendar
System for organizing the days of year
Chinese calendar
Lunisolar calendar from China
Chronometry
Art or science of measuring time
CLOCK
Protein-coding gene in the species Homo sapiens
Clock Face, St Helens
Village in England
Daylight saving time
Seasonal change of clock settings
December
Twelfth month in the Julian and Gregorian calendars
Digital clock
Type of clock that displays the time with numbers
February
Second month in the Julian and Gregorian calendars
Friday
Day of the week
Gregorian calendar
Internationally accepted civil calendar
Hebrew calendar
Lunisolar calendar used for Jewish religious observances
Hourglass
Device using the flow of a substance to measure time
Islamic calendar
Lunar calendar used by Muslims to determine religious observances
January
First month in the Julian and Gregorian calendars
Julian calendar
Calendar introduced by Julius Caesar
July
Seventh month in the Julian and Gregorian calendars
June
Sixth month in the Julian and Gregorian calendars
Leap year
Calendar year containing an additional day
Lunar calendar
Type of calendar
Lunisolar calendar
Lunar calendar
March
Third month in the Julian and Gregorian calendars
May
Fifth month in the Julian and Gregorian calendars
Monday
Day of the week
Names of the days of the week
List article
November
Eleventh month in the Julian and Gregorian calendars
October
Tenth month in the Julian and Gregorian calendars
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
Saturday
Day of the week
September
Ninth month in the Julian and Gregorian calendars
Solar calendar
Type of calendar
Stopwatch
Handheld timepiece designed to measure an amount time
Sunday
Day of the week
Sundial
Device that tells the time of day by the apparent position of the Sun in the sky
Thursday
Day of the week
Time zone
Area that observes a uniform standard time
Tuesday
Day of the week
Watch
Personal timepiece
Water clock
Time piece in which time is measured by the flow of liquid into or out of a vessel
Wednesday
Day of the week