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Since the earth rotates at the rate of (360 / 24) = 15 degrees per hour, 87 degrees is (87 / 15) = 5.8 hours west of Greenwich.
Therefore at 87 deg w lon, the sun is highest exactly 5.8 hours after it is highest at Greenwich (London).
Due to the eccentricity of the earth's orbit, the clock-time of sun transit is not constant throughout the year, even at Greenwich.
But on a day when the sun at Greenwich is highest at 1200, then at 87 deg w lon, the sun must transit at 1748GMT.
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How do you tell latitude from longitude?
The Earth rotates 360 degrees every 24hrs, so breaking down, it rotates about 1 degree every 4mins, or 15 degrees per hour. Once you work out the time the sun is at it's zenith (highest point) at GMT time you could work out the longitude by adding 1 degree for every minute, or 15 degrees per hour. eg, in New York, the sun will reach it's zenith about 1700hrs GMT time. So that's 5hrs after 12noon GMT, 5hrs times 15 degrees per hour is 75 degrees longitude. (Looking at a map, it's about 73/74 degrees, so not bad calculations).
What does GMT mean and what line of longitude is it located on?
GMT is a time zone abbreviation, which stands for Greenwich Mean Time. This is the time at zero degrees of longitude, which passes through the Greenwich, England.
What is the longitude of a town if its local time is 6pm when greenwich time is 4pm?
The time difference between the local time and Greenwich Mean Time (GMT) is 2 hours. Since there are 360 degrees of longitude in a full circle and 24 hours in a day, each hour of time difference corresponds to 15 degrees of longitude. Therefore, the longitude of the town would be 30 degrees west of the Prime Meridian (Greenwich).
What will be the time at 15 degrees west longitude if the time at 50 degrees east longitude is 5 am?
It is 2pm. Every 15 degrees of longitude is a different time zone, since there are 360 degrees of longitude on Earth and 24 hours a day (360/24). Here, there is a 90 degrees difference in longitude, and therefore a 6 hours difference (90/6). The time gets later as it approaches the International Date Line from the east, therefore, since 150 degrees east is east to 60 degrees east longitude, the time is 6 hours after it.
Which cities are ahead and before Greenwich time?
Typically countries in the western hemisphere with negative longitude values will be behind Greenwich time and those in the eastern hemisphere with positive longitude values will be ahead of Greenwich time. For example, Oslo Norway which is east of Greenwich is one hour ahead of GMT (GMT +1) and the Azores (GMT -1) which is west of Greenwich is one hour behind GMT.
What is the latitude and longitude of Greenwich London?
Greenwich, London is at Longitude 0 and latitude N51.48 degrees. Greenwich is the universal reference point for time zones called Greenwich Mean Time or more commonly GMT. Most time zones are based on this reference as a number of hours and half-hours "ahead of GMT" or "behind GMT".
When it is 0 degrees longitude what time is it in Mexico city?
GMT-6
How do you tell latitude from longitude?
The Earth rotates 360 degrees every 24hrs, so breaking down, it rotates about 1 degree every 4mins, or 15 degrees per hour. Once you work out the time the sun is at it's zenith (highest point) at GMT time you could work out the longitude by adding 1 degree for every minute, or 15 degrees per hour. eg, in New York, the sun will reach it's zenith about 1700hrs GMT time. So that's 5hrs after 12noon GMT, 5hrs times 15 degrees per hour is 75 degrees longitude. (Looking at a map, it's about 73/74 degrees, so not bad calculations).
What is 0 degrees longitude north and south?
The longitude of Greenwich Observatory, near London, England. Check out GMT.
What does GMT mean and what line of longitude is it located on?
GMT is a time zone abbreviation, which stands for Greenwich Mean Time. This is the time at zero degrees of longitude, which passes through the Greenwich, England.
How can you convert GMT into local time?
Find out the longitude of your location in degrees, multiply by 24 and divide by 360. This gives the difference in hours between your location and the Prime (or Greenwich) Meridian. For example;1. Longitude 10 degrees East: 10*24/360 = 0.67 hours approx., = 40 minutes.Local time would be GMT plus 40 minutes (e.g, if the time was 11.20 GMT, local time would be 12.00);2. Longitude 15 degrees West: 15*24/360 = 1 hour.Local time would be GMT minus 1 hour (e.g, if the time was 11.00 GMT, local time would be 10.00).
What is the longitude line of London UK?
The Prime Meridian, (0 degrees E/W), runs through the London suburb of Greenwich. GMT (Greenwich Mean Time) is where all of the world's time zones are measured from and will be either ahead or behind GMT.
What is the longitude of a town if its local time is 6pm when greenwich time is 4pm?
The time difference between the local time and Greenwich Mean Time (GMT) is 2 hours. Since there are 360 degrees of longitude in a full circle and 24 hours in a day, each hour of time difference corresponds to 15 degrees of longitude. Therefore, the longitude of the town would be 30 degrees west of the Prime Meridian (Greenwich).
What longitude is London found?
The Prime Meridien (0 degrees longitude) passes through the London Borough of Greenwich - hence GMT (Greenwich Mean Time).
What major London suburb is at 0 degrees longitude?
Greenwich. That's where the term GMT (Greenwich Mean Time) comes from.
What will be the time at 15 degrees west longitude if the time at 50 degrees east longitude is 5 am?
It is 2pm. Every 15 degrees of longitude is a different time zone, since there are 360 degrees of longitude on Earth and 24 hours a day (360/24). Here, there is a 90 degrees difference in longitude, and therefore a 6 hours difference (90/6). The time gets later as it approaches the International Date Line from the east, therefore, since 150 degrees east is east to 60 degrees east longitude, the time is 6 hours after it.
What is the nearest line of longitude for London United Kingdom?
0 degrees longitude runs through Greenwich which is a suburb of southeast London, which is where Greenwich Mean Time (GMT) comes from.
