What would happen if there was no International Date Line/Greenwich Mean Time.
Answers
Answer:
Explanation:
The international date line is an imaginary line that runs north-south across the Pacific Ocean from the North Pole to the South Pole.The international date line (IDL) is an imaginary line that runs along the Earth's surface from the North Pole to the South Pole in the middle of the Pacific Ocean. When you cross it, you either gain or lose a day depending on which way you are traveling. If you are traveling westward, you gain a day, and if you are traveling eastward, you lose a day.
For example, if a traveler moves eastward across the Pacific Ocean from Wake Island to the Hawaiian Islands on June 25, they will jump backward to June 24 as soon as they cross the IDL. If, however, they are traveling in the opposite direction, they will arrive at Wake Island on June 26.
Although the traveler seems to move backward or forward in time, there's no physics-defying magic going on here. The international date line is based on a rational, practical system of universal timekeeping that takes into account the movement of Earth around the sun. WHY DO WE NEED THE INTERNATIONAL DATE LINE?
Earth rotates counterclockwise (from west to east) on its axis as it travels around the sun. This means that different parts of the planet receive the sun's direct rays at different times, so when it is noon on one part of Earth — the period when the sun is at its highest in the sky — another part of the planet may be completely in shadow or experiencing sunrise or sunset. It also means that, theoretically at least, if you were somehow able to outrun Earth's rotation, which is a speed of roughly 1,000 mph (1,600 km/h), you could experience perpetual daylight and never see darkness.
But humans don't travel at such speeds (unless you are on the International Space Station), and when not traveling people generally stay in one place. So, to allow people to experience daylight hours in roughly the same amount — that is, to experience a normal day from sunrise to sunset — time zones are in use around the world.
The first system of time zones was proposed by Sir Sandford Fleming in 1876, according to an article in Globe and Mail, a Canadian news publication. Fleming was a Scottish engineer who helped design the Canadian railway system. He wanted to make the railroad more efficient and avoid any complications resulting from the different schedules set by the different train stations, which set the time according to their local astronomical conditions, according to Encyclopedia Britannica. Accordingly, he proposed a system of 24 standard time zones that would span the circumference of the Earth. Within each time zone, all clocks would be set to an average time that best represented where the sun was located in the sky. The practicality of his system soon caught on, so that by 1900 most of the industrialized nations of the world had adopted it. Today, with a number of significant modifications, we still use the 24-time-zone system originally proposed by Fleming. The logic of dividing Earth into 24 zones is derived from the fact that the planet is a sphere, and like any sphere it can be divided into 360 equal sections, or 360 degrees. Each time zone is measured as 15 degrees wide, and 360 divided by 15 is 24. All of these zones are numbered consecutively eastward from what is called the prime meridian, which is a line of longitude that runs directly through the British Royal Observatory in Greenwich, in the United Kingdom. The prime meridian was established in 1851 at a time when the U.K. was one of the most powerful and technologically advanced nations on Earth. With a powerful navy, the British were well advanced in navigation and timekeeping and were using the most sophisticated devices available to reckon global position and time. The prime meridian, at 0 degrees longitude, is the point from which all other measurements of longitude are taken. The prime meridian is also where the system of 24-hour timekeeping that is called Greenwich Mean Time (GMT) originated.
I hope it will helps you
Please mark me brainlist .
As you go east from the prime meridian, the time zones increase consecutively by one hour, or conversely, decrease consecutively by one hour as you go west. But Earth, of course, does not go on indefinitely; eventually, a point is reached when you have to start over — or jump backward or forward in time depending on your direction of travel.