Zone
A zone is an area separated from other areas in some artificial or natural manner. Many different types and sizes of zones exist.Twenty-four artificially defined time zones help standardize timekeeping worldwide. The time zones are based on the official time in Greenwich, England—called Greenwich Mean Time—and may follow natural or political borders in different parts of the world.The world is sometimes divided into five zones according to latitude. The tropical, or Torrid Zone, lies near the Equator... Читать дальше...