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How do you calculate time difference using longitude having same direction?
Wiki User
∙ 10y ago
Our clocks are tied to the sun. So if you know how the sun moves, you know how
the clocks behave.
The sun appears to move through 15 degrees of longitude per hour ... 4 minutes
per degree. If two points on Earth are separated by 15 degrees of longitude, then
the sun appears to take an hour to move from one of them to the other. If they're
not exactly 15 degrees apart, than whatever the difference in their longitudes is,
it takes the sun 4 minutes to cover each degree.
Now all you need to know is: Which direction does it move.
-- The sun rises in the East and sets in the West. Right ? Right !
-- So the sun is always moving towards the west.
-- Whatever time it is here, this time came from the east, and it's going to the west
when it leaves here.
-- Whatever time it is here, it's later than that in the east, because this time has
already been there.
-- Whatever time it is here, it's earlier than that in the west, because this time
hasn't gotten there yet.
Wiki User
∙ 10y ago
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What time is it in a city located at 45 degrees W longitude when it is 2 AM in a city located at 15 W longitude?
Locations having a higher W longitude are farther west, and therefore "earlier" in standard time. Each 15° of longitude defines 1 hour's time difference, there being 360° of longitude divided by 24 hours.So the time at the location at 45°W will be 2 hours [(45-15)/15] earlier, or midnight.
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What time is it in a city located at 45 degrees W longitude when it is 2 AM in a city located at 15 W longitude?
Locations having a higher W longitude are farther west, and therefore "earlier" in standard time. Each 15° of longitude defines 1 hour's time difference, there being 360° of longitude divided by 24 hours.So the time at the location at 45°W will be 2 hours [(45-15)/15] earlier, or midnight.
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