This unique clock accurately displays the time, date, and day of the
week anywhere in the world at a glance on a backlit world map.
The most impressive feature of the Geochron is its ability to display,
in real time, the ever-changing pattern of daylight and darkness on
the earth's surface.
Because the Geochron display is a world map, the viewer soon gains an
instinctive sense of what time it is everywhere. It is no longer
necessary to make an arithmetic calculation to know when it's an
appropriate time to call someone in Paris, France, or Sydney,
Australia. A glance at the light pattern on the map instantly tells
you whether it is daylight or the middle of the night.
For every point on the surface of the earth the Geochron displays
the following:
. Greenwich Mean Time
. Local Legal Zone Time
. Equation of Time
. Local Apparent Time
. Moment of Sunrise and Sunset
. Duration of Daylight
. Sun’s Meridian Passage
. Latitude and Longitude
. The geographic extent of the prevailing day and date
and much more.
The map is in constant motion, moving from left to right one
inch per hour in synchronization with the Earth's orbit around the
sun.
The Geochron is a sophisitcated planner as well. You can
advance the date indicator to any day of the year - and the Geochron
will display information for that particular date. A great feature
for educators and for anyone planning a future event such as a
vacation or a trip.