A global time system for determining the time at one location on the earth with respect to another location on the earth where the time is known, consisting of:
- a first disc divided into twenty-four equal sections by twenty-four lines radially extending from the center of said first disc, said lines representing lines of longitude spaced 15.degree. apart, each of said twenty-four sections representing a different time zone;
- nine circles concentrically disposed about the center of said first disc in progressively decreasing spaced relationship from the center of said first disc outward, each of said circles representing lines of latitude spaced 10.degree. apart;
- a plurality of geographic spaces formed between adjacent lines of longitude and latitude, said geographic spaces having a width of 15.degree. longitude and a length of 10.degree. latitude;
- a plurality of longitude numbers spaced around said first disc and indicating the respective longitudes of said twenty-four lines;
- a time disc rotatably mounted at the center to the center of said first disc, the outside edge thereof having twenty-four hour marks thereon, each of said hour marks being equally spaced from each adjacent mark, the marks on each half of said time disc being consecutively numbered from one to twelve for designating the twenty-four hours of the day, said time disc further having twenty-four half-hour marks centered between adjacent hour marks;
- a pair of oppositely opposed arrows extending outwardly from the center of said time disc and dividing said time disc in half, one half representing A.M. hours and the other half representing P.M. hours;
- said time disc having a darkened portion, one edge of which passes through the center of said time disc and extends perpendicular to said arrows, said darkened portion representing nighttime hours;
- said time disc having a lightened portion opposite from said darkened portion and representing daylight hours;
- means for rotatably mounting said time disc to said first disc;
- twenty-four reference symbols located on said first disc adjacent to the outside edge of said time disc, one of said reference symbols being located in each of said twenty-four sections;
- consecutively numbered identification symbols within each of said twenty-four sections, each identification symbol representing a specific geographic location on the earth within the time zone represented by said section and disposed within said geographic space according to the actual longitude and latitude of the specific geographic location;
- a forward dot located in front of said identification symbol for indicating that the geographic location represented by said identification symbol lies in the Northern Hemisphere;
- a rearward dot located behind said identification symbol for indicating that the geographic location represented by said identification symbol lies in the Southern Hemisphere;
- and
- a geographic chart located at one side of said first disc and listing specific geographic locations arranged by said reference symbols of said twenty-four sections and said consecutively numbered identification symbols.