Question

what are longitudes and how can you use them to calculate time?


very sort answer ​

Answer 1

Answer:

The angular distance of a place east or west of the Greenwich meridian, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes.

Every gain or loss of 1° longitude stands for 4 minutes.  

360°= 24 hours = 1440 min  

360° implies one complete rotation of earth.  

1° = 1440 min ÷ 360° = 4 min

Answer 2

Answer:

Finding Longitudes

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