GEOG 001 Study Guide - Central Time Zone, International Date Line
Document Summary
It takes 24 hours for the earth to complete one rotation around its axis (that is turn. The earth rotates eastward (right), therefore the sun appears to rise in the east and set in the west. Time is determined by where you are located in relation to the earth"s rotation around the sun. In one hour the earth rotates 15 longitude, so the time zones are spaced 15 of longitude apart. Rather than having people continually adjusting clocks to local sun time when moving. The earth has been divided up into time zones that generally correspond to one hour east or west, 24 time zones have been established by international agreement. Each time zone is a band of longitude, within which it is the same time. When moving from one time zone to the next, we adjust our watches by one hour. intervals (every 15 degrees of longitude) starting with the prime meridian (0 ).
