Question

What is the time at 30 degree west when the time at Greenwich meridian is 12 noon?

Answer 1

Answer:

7.04 a.m

Explanation:

Greenwich mean time (GMT) = 12 noon every 1° is equal to 4 minutes. therefore, 74° = 74×4 = 296 minutes. Therefore, When it is 12 noon at Greenwich, the time at New York (74° W) is 7.04 a.m

Answer 2

Answer:

When the time at Greenwich meridian is 12 noon, the time at 30 degree west will be 10 A.M.

Explanation:

The line in Greenwich represents Longitude 0º. The distance east or west from this line is used to measure every place on Earth.

• On Earth, for each degree of longitude the time difference is equal to four minutes.
• The Greenwich meridian Time (GMT) is 12 noon means 12 P.M.
• When the time taken to west longitude the time is subtracted from 12 p.m.

To find the time of place located at 30° West

For one degree = 4 minutes

For 30° the time will shift = 30 × 4 = 120 minutes  = 2hrs

For west direction, the time is behind of GMT.

Therefore, the local time of place 30°W = 12 noon - 2hrs

                                                                  =  12 P.M. - 2hrs = 10 A.M.

Therefore, the time at 30° west will be 10 A.M. when 12 noon at Greenwich meridian.

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