Table of Contents
- 1 How does time differ from one longitude to another?
- 2 What is local time of longitude?
- 3 What is relation between longitude and time?
- 4 What is the relationship between longitude and time short answer?
- 5 What is longitude Class 11?
- 6 What is the connection between longitude and time?
- 7 What is the difference between longitude and latitude?
- 8 Why are longitudes named after the degrees they make?
How does time differ from one longitude to another?
The earth has 360 imaginary lines called longitudes or meridians running vertically between the poles. Each of these longitudes is called a degree. The time difference between each longitude (each degree) is 4 minutes. So if it is 12 noon at Greenwich (0 degree), it would be 12:04 pm at 1 degree meridian and so on.
What is local time of longitude?
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.
How does local time vary?
Time measurement is based on mostly regular natural phenomena, such as alternating light and dark periods caused by the rotation of the planet. The total time taken by two successive periods is constant, but the lengths of the light and dark period vary. One simple constant is noon.
What is relation between longitude and time?
There is a close relation between longitude and time. The Earth makes one complete rotation of 360 degrees in 24 hours. It passes through 15 degrees is one hour or one degree in four minutes. Thus there is a difference of 4 minutes of time for one degree of longitude.
What is the relationship between longitude and time short answer?
It takes 4 minutes to travel from one longitude to another. So, generally 1 degree difference in Longitude, causes a difference of 4 minutes. The places located in the East of the Prime Meridian are ahead in time to the places located in the Western Hemisphere.
What is local time Class 9?
Answer: Local time implies the time of a particular country, as regards the meridian running through it. On the contrary, standard time is referred as the official local time of a region ascertained by the distance from the Prime Meridian of the meridian running through the area.
What is longitude Class 11?
Answer: The meridians of longitude refer to the angular distance, in degrees, minutes, and seconds, of a point east or west of the Prime (Greenwich) Meridian. Lines of longitude are often referred to as meridians.
What is the connection between longitude and time?
Because of the earth’s rotation, there is a close connection between longitude and time. Local time (for example from the position of the sun) varies with longitude, a difference of 15° longitude corresponding to a one-hour difference in local time. Comparing local time to an absolute measure of time allows longitude to be determined.
What is the difference between positive and negative longitude?
Positive longitudes are east of the prime meridian, and negative ones are west. Because of the earth’s rotation, there is a close connection between longitude and time. Local time (for example from the position of the sun) varies with longitude, a difference of 15° longitude corresponding to a one-hour difference in local time.
What is the difference between longitude and latitude?
Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are actually halves of great ellipses, with identical radii at a given latitude. Latitude (φ) Lines of latitude appear horizontal with varying curvature in this projection; but are actually circular with different radii.
Why are longitudes named after the degrees they make?
All other longitudes are named after the degree it makes with this longitude ( as upto 180 degrees east or upto 180 degrees west) depending on its position on the globe. The earth rotates around its own axis (360 degrees) every 24 hours (24hoursx60 minutes) ; therefore every 4 minutes it rotates through one degree.