Analogue Global Clock synchronized with the rotation of the earth

Abstract

The invention relates to a clock, which let one know at a glance, the standard time of a city of interest around the globe. Comprising a clock having an outer fixed dial 3 representing the important cities of the world and an inner moveable dial 4 which shows the time and indicates with the intensity of black and white shades, where on the globe does sun shine over head, where the night does fall, and on which longitude the dawn or the dusk starts. The clock work is geared to reduce the revolutions of hour shaft by halve, and a dial 4 is fixed over it. As a result the dial 4 completes one revolution every 24 hours. The outer fixed dial 3 is calibrated to show a division of fifteen meridians representing one hour. The main cities of a certain time zone are printed in a single line adjacent to the matching longitudes over the periphery of the outer dial 3. It is quite easy to find the time of a city of interest from the list.