Question

How is longitude help in calculating time.​

Answer 1

Answer:

Because one day is 24 hours long one can easily use time to calculate longitude. One hour of time difference corresponds to 15° of longitude (360°/24 hours = 15°/hour). Suppose an observer sets his accurate watch to 12:00 at noon in Greenwich, England and then travels a great distance.

Answer 2

Answer:

because it helps in various calculating between two place