| 41. | This ideal mean solar time has been used ever since then to describe the motions of the planets, Moon, and Sun.
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| 42. | Two types of solar time are apparent solar time ( sundial time ) and mean solar time ( clock time ).
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| 43. | Times in the Almanac were in apparent solar time, because time aboard ship was most often determined by observing the Sun.
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| 44. | Two types of solar time are apparent solar time ( sundial time ) and mean solar time ( clock time ).
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| 45. | The clock time in this zone is based on mean solar time at the 135th meridian west of the Greenwich Observatory.
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| 46. | UTC represents the mean solar time at the meridian, which is kept by the Bureau International des Poids et Mesures in France.
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| 47. | Secondly, the solar time must be corrected for the longitude of the sundial relative to the longitude of the official time zone.
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| 48. | The westernmost point in Norway proper is on 4?92 E longitude, meaning 42 minutes difference between mean solar time and official time.
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| 49. | An analemma may be added to many types of sundials to correct apparent solar time to mean solar time or another standard time.
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| 50. | An analemma may be added to many types of sundials to correct apparent solar time to mean solar time or another standard time.
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