Unformatted text preview: discrepancy that causes the difference in sidereal and solar time, and is responsible for the fact that different constellations are everhead at a given time of day during the Summer than in the Winter. Time Zones and Universal Time As a matter of civil convenience, the Earth is divided into various time zones . The time for many astronomical events is given in Universal Time (UT), which is (approximately) the local time for Greenwich, England---the Greenwich Mean Time or GMT. The conversion from UT to local zone time may be made using this map or this set of links . Alternatively, here is a clickable Java applet illustrating the world's timezones....
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- Fall '10
- Anthropology, Coordinated Universal Time, Universal Time, Time zone, Sidereal time