求翻译：时区是地球上的区域使用同一个时间定义。以前，人们通过观察太阳的位置（时角）决定时间，这就使得不同经度的地方的时间有所不同（地方时）。时区通过设立一个区域的标准时间部分地解决了这个问题。世界各个国家位于地球不同位置上，因此不同国家的日出、日落时间必定有所偏差。这些偏差就是所谓的时差。是什么意思？

Earth time zone is the area defined using the same time. Previously, people by observing the sun's position (hour angle) decision time, which makes the time in different parts of the longitude of different (local time). Through the establishment of a regional time zone standard time part of the solu

Time Zone is the region on earth using the same definition time. Previously, it was by observing the position of the Sun (at time point) decided that this makes different longitudes of different local time (local time). Time zone through the establishment of a regional standard time partially solved

The time zone is on Earth's region use identical time defines.Before, the people through observed sun's position (when angle) decide the time, this caused the different longitude the place time to differ from (local time).The time zone through set up a region the standard time to solve this problem

Time zone is a defined area using the same time on the Earth. Before, people by observing the Sun's position (hour angle) decision, which makes different longitudes of the local time is different (local). Standard time in time zone through the establishment of a region partially solved the problem.

Earth time zone is the area defined using the same time. Previously, people by observing the sun's position (hour angle)