Zone Time. Hour zonesы  

Sunny time points, one meridian, as local. Because every time of day it differs at all meridians, it is inconvenient to use. Therefore, an international agreement entered Standard Time. This entire surface of Earth divided on meridians 24 waist to 15 ° longitude. World Time (the same in each belt) is a local median time meridian of the zone. Zero zone is a zone, which is the median Greenwich meridian (zero) meridian. That zone is a 24-m It is through zones to the east. Russia has 11 time zones: from the second (which is Moscow, and which called Moscow) on the 12nd (Island in the Bering Strait). Time difference between these zones is 10 hours, that is, when Moscow midnight, in the 12 th time zone, 10 hours morning. The difference in time between zones is the difference between the numbers of time belts. For the convenience of the 11 th and 12 th time zones were combined into one. The boundaries of time zones are not strictly for the meridians, and match border administrative units (areas of the country) so that one the administrative units located in the same time zone.