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Day
24-hour clock
Clock
12-hour clock
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Minute
Second
Century
Prague Astronomical Clock
Equation of time
Year
Time
Equinox
Leap second
Sundial
Key terms: hours time day noon sunset clock solar night hora si sunrise stars counting unit century modern sat jam ure starts greek numbered ancient period marked length always either summer astronomical midnight middle varied definition sometimes italian duration solar time widespread one twelfth time between showed these hours astronomical clock apparent solar day counting the hours Search external links cited by footnotes on Wikipedia page Hour: |
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