give reason why do large countries have many time zones
Answers
Answer:
Large countries like U.S.A,Canada, Australia and Russia have many time zones because they have a large width and a vast East to West extent. Russia has as many as 11 time zones and USA has six zones.
Answer:
•Time zones are based on the fact that it takes one hour for the earth to rotate 15 degrees on its axis. This means that if the sun is at its zenith at some location (local noon—when it is at highest part of its arc across the sky) it is an hour later 15 degrees of longitude east of that point and an hour earlier 15 degrees of longitude west of that point.
That means that large countries that span more than 30 degrees of longitude usually have different time zones. Although there are a couple of countries that ignore this and have only one time zone for political reasons.
Prior to the adoption of timezones in the 19th century EVERY town had a different time basis set by measuring the local noon . There is/was nothing wrong with that because there was no practical reason for different towns to have a common time basis. People and information could only travel as fast as a horse could run or carrier pigeon fly. Astromers, navigators and surveyors cared because they calculated longitude based on time.