Question

The standard meridian of a country is generally a multiple of ________________.

Answer 1

Explanation:

why is the standard meridian selected by a country a multiple of 7.5 degree ? IN ANCIENT TIMES, SUN WAS THE ONLY MEANS TO TELL THE TIME. PEOPLE USED TO SEE THE PATH OF THE SUN IN THE SKY TO ESTIMATE THE TIME.

Answer 2

Answer:

because 15 degrees of longitude is equivalent to 1 hour in time (that is 360 / 24) it is convenient to adopt time zones at 7.5 degrees or 15 degrees multiples. In other words time zones are separated by multiples of 1 hour or 1/2 hour.