Twelve months of the year, the world's poles have nonstop sunshine for six months and nonstop darkness for the other six months.
Prime Meridian Day 2023: Every year on November 1, people celebrate Prime Meridian Day. The big Airy Transit Circle telescope at the Royal Observatory in Greenwich, England, was used to describe the prime meridian in 1884. In 1850, Sir George Biddell Airy, the seventh Astronomer Royal, created the telescope that is still used today. The markers on the Airy Transit Circle marked 0° longitude. Today, we honor the prime meridian and all the things it did, like splitting the Earth into the Eastern and Western Hemispheres and setting up the world’s time zones.
On October 1, 1884, President Chester A. Arthur of the United States hosted this event in Washington, D.C. The meeting was called to choose the official longitude of 0° and set up global time zones. This point is also known as the prime meridian. There were more than 41 participants from 25 different countries. Twenty-two of the countries that were there voted in favor of Greenwich. France and Brazil did not vote, and Haiti voted against it.
The world did not have a standard prime meridian before the meeting. Since lines of longitude are made up, many places were thought to be at 0° longitude. English Greenwich was named the world prime meridian on October 13. It is held every year on Prime Meridian Day to honor the event.
In the Greenwich Observatory, the prime meridian went through the middle of a transit device. The telescope changed its name to the Royal telescope, Greenwich over time. After the Second World War, the observatory was moved to Hailsham, East Sussex, even though Greenwich was still where the prime meridian went. In the end, the Hailsham site became known as the Observatory Science Center. After some time, the Royal Observatory moved back to Greenwich.
The International Date Line is in the Pacific Ocean at 180° longitude, as agreed upon in the treaty at the International Meridian Conference. There are many meridians, with a time change of one hour between each one every 15°. But some countries don’t follow the rule about changing the time. China, for instance, only has one time zone, even though it has five lines going through it.
To find out more about the prime line, go to Greenwich’s Royal Observatory. To get the full view, you can also visit Hailsham’s Observatory Science Center.
It’s always fun to learn. Learn about the world’s time zones and make note of the differences between them. It could be useful at quiz night, you never know.
Get the exact location of where you live, work, or go to school. If someone asks for your home, this could be a funny answer.
Reformation Day 2023: Date, History, Significance, Facts about Martin Ruther
| Year | Date | Day |
|---|---|---|
| 2023 | November 1 | Wednesday |
| 2024 | November 1 | Friday |
| 2025 | November 1 | Saturday |
| 2026 | November 1 | Sunday |
| 2027 | November 1 | Monday |
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