Earth time zone is an interactive 3D global Time zone,show more than 250 countries local standard times,allows you to add any country Timezone, Find time zone information by country name around the world.As a high resolution interactive 3D world map clocks,including countries, lakes, rivers, and political boundaries,Config to show day/night shadow effect; or auto-rotating,zoom in,zoom out the whole globe etc.Earth time zone allowing you to set up variety of the Time or Date formats,daylight times,standard time or replace system clock.lets you easily calculate the working time overlap for people in different country.