what are longitude and how can you use them to calculated time
Answers
Answer:
Longitudes are geographical positioning markers that run from the geographical North to the geographical South Pole, intersecting the Equator. They meet at both Poles, and specify the East-West position of a location.
Explanation:
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.
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
now,
on every longitudinal degree increase towards east of prime meridean(i.e 0°), add 4 min and
on every longitudinal degree increase towards west, substract 4 min.After the hours is calculated add(if east) or substract( if west) it with time of GMT. example is mentioned below.
prime meridean is our world’s relative standard time calculator.Also known as GMT, Greenwich meridean time.
example.
mirzapur of india is at 82.5° East from prime meridean(GMT).
To calculate time
multiply 82.5 with 4 i.e 330 minutes.divide 330 min with 60 min i.e 5.5 hours.whatever time would be in greenwich,U.K, add 5.5 hours with that.
simple!
longitude passing through Mirzapur is India’s STD (standard time zone).
same has to done in case if the position is on west of GMT but in this case time has to be substracted from time of GREENWICH.
hope,this would be helpful.
Answer:
Longitudes are geographical positioning markers that run from the geographical North to the geographical South Pole, intersecting the Equator. They meet at both Poles, and specify the East-West position of a location.
Explanation:
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.
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
now,
on every longitudinal degree increase towards east of prime meridean(i.e 0°), add 4 min and
on every longitudinal degree increase towards west, substract 4 min.After the hours is calculated add(if east) or substract( if west) it with time of GMT. example is mentioned below.
prime meridean is our world’s relative standard time calculator.Also known as GMT, Greenwich meridean time.
example.
mirzapur of india is at 82.5° East from prime meridean(GMT).
To calculate time
multiply 82.5 with 4 i.e 330 minutes.divide 330 min with 60 min i.e 5.5 hours.whatever time would be in greenwich,U.K, add 5.5 hours with that.
simple!
longitude passing through Mirzapur is India’s STD (standard time zone).
same has to done in case if the position is on west of GMT but in this case time has to be substracted from time of GREENWICH.