Question

why local time of place on different longitud are different​

Answer 1

Answer:

Explanation:  

Local time is the time at one particular meridian. Since the sun cannot transit two meridians simultaneously, no two meridians have exactly the same local time. The difference in time between two meridians is the time of the sun's passage from one meridian to the other.

Answer 2

Since the earth rotates from west to east, the places east of Greenwich are ahead of Greenwich Mean Time and those to the west are behind it. All the places located on a particular meridian or a particular longitude have the same local time. Each place crosses the sun at different times.