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