In order to avoid splitting a state, county, city, or town with a time-zone boundary.
Can you imagine how you might handle your work schedule, dental appointments, bus schedule,
or the TV prime-time lineup, if your city had two different time zones in it ?
Because in different cases, there are political boundaries.
With very few exceptions, land boundaries between time zones most often follow political borders.
Because the time-zone boundaries would then cut through states and even cities.
Trust us ... it would not be a good thing to have two different times in the same city.
If they did follow longitude lines, time zones would split countries into inconvenient pieces.
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The prime meridian is a line of longitude
It's the lines of longitude which are used to define time zones, not lattitude.
The polar and temperate zones and the tropics.
Time Zones are based on lines of Longitude - with detours to avoid land.
Time Zones are..............................Longitude
yes
The prime meridian is a line of longitude
It's the lines of longitude which are used to define time zones, not lattitude.
The polar and temperate zones and the tropics.
Time Zones are based on lines of Longitude - with detours to avoid land.
Time Zones are..............................Longitude
There are 24 time zones. The Earth is 360 degrees around the circumference. So, for every 15 degrees of longitude there is one time zone.
They do follow the longitude approximately but in some regions there are political reasons for changing them, for example a large part of Russia is on GMT+3 to make things simpler for the people who live there.
There are 24 hours in a day and 360 degrees so the globe is divided into 24 time zones that are 360°/24 = 15 ° wide. Of course the time zones do not follow the longitudes exactly. Different localities may opt to be part of an adjacent time zone for business purposes. Most of western Europe is on the same time zone even though the countries span about 30° of longitude. There are also some locations that choose to follow their own time zone that is half way in between the nearest time zones - such as India and central Australia. The "international date line" follows (roughly) the 180 ° longitude.
rom east to west they are Atlantic Standard Time (AST), Eastern Standard Time (EST), Central Standard Time (CST), Mountain Standard Time (MST), Pacific Standard Time (PST), Alaskan Standard Time (AKST), Hawaii-Aleutian Standard Time (HST), Samoa standard time (UTC-11) and Chamorro Standard Time (UTC+10).
they are useful because in that way you may find easily the climatic zones and their degrees and when joined together with lines of longitude you may find the location of a place.
Lines of latitude allow any position north or south of the Equator to be found with reasonably accuracy. Which, along with lines of longitude, are extremely important in the navigation of shipping.