Question

Why does local time vary from one longitude to another?

Answer 1

Answer:

We know that the Earth revolves about its axis once every 24 hours.  In other words, the Sun completes its apparent revolution of 360o in 24 hours.  This means that the Sun crosses each of the 360 meridians of longitude once every 24 hours.

So, in 1 hour, the Sun appears to move 15o,

in 4 minutes, it appears to move 1o,

in 1 minute it appears to move 15′,

in 4 seconds it appears to move 1′.

Explanation:

Answer 2

Answer:

Longitude is the distance of a place east or west of the prime -meridian

measured from the center of the earth. Local time various from one longitudes to another because it deffers by uminutes for each longitude.