Because your two longitudes are 30 degrees apart, you'll be two hours apart. Because the planet rotates from West to East, the time at 45 East is 2 hours ahead of the time at 15 East. This is useful in places where time zone boundaries run straight north or south. South of London, for example, East is where we want to go - west means back home again.
North of San Francisco, on the other hand, going east is the right thing to do - this brings us back into daylight savings time. Since the UK and US adopted DST, West Coasters have had to get up an hour earlier in March and November.
If you're traveling between North America and Europe, then these are important considerations. If you're flying from California to Amsterdam, going east means that you'll arrive in the evening there, while turning west means morning there.
But what if you want to travel between North America and Asia? In this case, you should go west when possible, because it gets you out of the night time here and into the day time there.
Now, how far is 45 degrees east? That's half the globe! It's about 5,000 miles from San Francisco to London, or about 8,500 miles from New York City to San Francisco.
As a result, a one-hour gap exists between two locations separated by 15 degrees of longitude. Because the sun rises in the east and sets in the west, there is a difference of 24 hours, or one day, between the east and west sides of the 180 degree line of longitude.
The first location to explore was India. Here the British established three separate territories in 1876: Bengal, which included present-day Bangladesh; Bombay, which includes present-day Maharashtra; and Madras, which includes present-day Tamil Nadu. These regions were joined together into one country in 1947: India. In 1945, the United States obtained permission from Britain to establish a military base on Indian soil, since planned after World War II tensions with Russia and China. This base has been given the name Diego Garcia and it is located in the Indian province of Mauritius.
The second location was Australia. It was discovered in 1606 by Dutch explorers who called it New Holland. In 1770, England acquired the territory from France. In 1788, the entire continent was divided into colonies with London as the capital. In 1951, India became independent from Britain and in 1971, so did Pakistan. The two countries share a border along most of their shared boundary but not including Diego Garcia.
In conclusion, India and Australia are two countries that share a border at 15 degrees of longitude.
A variation of one degree longitude corresponds to a time difference of four minutes. The Earth spins 360 degrees in about 24 hours, implying that it covers 15 degrees in one hour or 1 degree every four minutes. As a result, when it is noon at Greenwich, the time at 15 degrees east of Greenwich equals 60 minutes, i.e., 15 x 4 = 60 minutes. The time at 30 degrees east of Greenwich equals 45 minutes, and so on.
Since the Earth's surface is not flat but round, there are places where hours are not equal to what we think of as "local" hours. For example, if you walk from Westminster Bridge to Tower Hill, you will have crossed a distance of 1 degree 20' west of Greenwich. This means that it is 1:20 in the morning instead of normal daytime hours. Or, to put it another way, since the Earth turns once in 23 hours and 56 minutes, events at 1 degree west of Greenwich are happening two hours earlier than they would be at Greenwich itself.
The reason for this is that the location 1 degree west of Greenwich is on the opposite side of England from London. As the country rotates eastward over the course of each day, parts of it is getting closer to midnight while other parts are getting further away. Thus, its makes sense that there should be times when events there are occurring later than at Greenwich itself. But how much later? Well, it depends on which part of England you're in at the time!
One hour is equivalent to every 15 degrees of longitude. So, if you are at 0 degrees longitude and move or travel 15 degrees east or west, you will notice a 1 hour difference. At 90 degrees longitude, there is a 9 hour difference instead! The further north or south you go, the more hours pass by.
For example, if it is 7:00 AM at one location and 2:00 PM at another, then it must be 7:00 AM in the first location and 9:00 AM in the second because there is a 2-hour difference between them. Longitude affects time in this way because 24 hours can be divided into two parts - day and night. During day time, the sun is high in the sky and sunlight is visible for longer distances. At night time, the sun has set and darkness falls quickly so people need light during that time of day.
Time passes more slowly at the poles than near the equator. Day length is the same everywhere on Earth, but the angle of the sun changes throughout the year and it gets lower and lower until it reaches its lowest point in January and begins to get higher again. At the poles, where the sun is low over the horizon for most of the year, 12 months equals only 354 days instead of 365.
The Earth takes 24 hours to complete a full circuit. So, dividing 360 degrees by 24 hours, we can determine that the Earth rotates around 15 degrees each hour. 4, Each time zone is assigned 15 degrees of longitude. A time zone is defined as that part of a continent where the sun rises and sets about 5 degrees north or south of east and west.
Time zones were first established by the American Association for the Advancement of Science in 1884. Before then, local sunrises and sunsets depended on the geographic location within a country or region. Time zones eliminated daily confusion caused by changing daylight savings times, which were originally invented by the United States during World War I.
Time is divided into zones because it takes our planet approximately 12 hours to rotate once around its axis. The rotation of the earth is called "rotation" and the direction it spins is called "direction". Since the earth turns from west to east, we need only consider cases where it is being viewed from the northern hemisphere.
If we divide the circle into 15 degree intervals, they will cover the entire globe twice per day, once when the clock says noon and again when it says 6 p.m. This is why we call them "time zones". There are exactly 180 degrees of longitude between each pair of time zones.