FIELD: mechanisms.
SUBSTANCE: clock includes means (17) of displaying sunrise and sunset, taking into account seasonal changes, said means includes sphere (17), reconstructing globe, shell (23) arranged concentrically relative to sphere and arranged, so as to separate section of Earth, where it is currently night, from other section, where it is currently day, while indicating position of Earth terminator. Sphere is designed to be brought into movement so that it can rotate at a rate of one revolution in 24 hours about first axis (X-X) of rotation directed parallel to plane of clock face, and shell is installed, so as to turn about second axis (Y-Y) perpendicular to plane of clock face. Means of displaying sunrise and sunset also includes one-year cam (35) installed with possibility of rotation at a rate of one revolution in one year and rocker (37), interacting with cam. Cam has a profile, which displays Sun inclination relative to equatorial plane. Device includes kinematic chain (31) made so, that plane of Earth terminator forms with polar axis an angle equal to angle of inclination of Sun relative to equatorial plane. Device includes a calendar mechanism configured to display date and month, wherein one-year cam (35) is kinematically connected with calendar mechanism.
EFFECT: provides visibility of entire surface of Earth.
13 cl, 13 dwg
