World time clock

Details World time clock World time clock

G - Physics

04

B

58/26

G04B 19/22 (2006.01)

Patent

CA 2039961

ABSTRACT OF THE DISCLOSURE A geographical clock comprising a rotatable circular face having projected thereon a map of the world centred on the south or north pole, provided with a circumferential second time zone, a frame with a fixed first time zone, i.e. a clock scale, and central hour minute and second hands. The map distinctively shows the 24 conventional geographical time zones. The second time zone is divided in 24 even sectors. The geographical time zones and the first time zone sectors are correspondingly colour coded. In one embodiment, the map and the hour hand are rotated together by a 24 hour clock mechanism. For re/setting the time according to the selected zone of locations, a stop mechanism holds the map in place while the hour hand is rotated counterclockwise towards the indication on the frame corresponding to the actual hour. In another embodiment, the map is rotated by the 24 hour clock mechanism, while the hour hand is rotated by a conventional 12 hour mechanism.

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