Question

Which longitude is taken as International Date Line ?

• A. 0° longitude
• B. 180° longitude
• C. 90° longitude
• D. 135° longitude

Answer 1

Answer:

B. 180° longitude

• Local time - The time estimated at each place based on the position of the sun is termed as the local time.

• Greenwich Time - The zero degree longitude is known as the Greenwich Meridian. Time is calculated worldwide based on the Greenwich Line. Hence this line is also known as the Prime Meridian.

• Standard Time - The local time at the Standard Meridian is the Standard Time of that country.

• Indian Standard Time - The 82 1/2º E longitude has been fixed as the Standard Meridian of India. The local time along this longitude is generally considered as the Indian Standard Time.

• International Date Line – 180° longitude is known as - International Date Line. There is a difference of 24 hours at two lines to the east and west of Greenwich.