Question

calculate time on the longitude 45 degrees west when it is noon at greenwich

Answer 1

Given : time of Greenwich - noon

to find time of - longitude at 45°

difference between longitude-

0°-45° =45

difference in local time - 45 × 4

= 180 minutes

= 180÷ 60 minutes

= 3 hours

45° W is to the west of Greenwich.

local time of Greenwich is 12 noon

therefore at the 45°north is =

= 12 -3

= 9am

the time at 45°north will be 9am

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