Global time indicator

Geochron world time indicator: working model showing the relation bewteen the rotating Earth and the time at one instant in any place. It shows sunrise, sunset, midday, date and the month. The Daylight area is illuminated. The Geochron is adjusted by knobs underneath.

Object Details

ID: ZAA0271
Collection: Timekeeping
Type: Global time indicator
Display location: Not on display
Creator: Geochron Entreprises; Geochron Enterprises Inc.
Date made: 1974
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 570 x 870 x 120 mm
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