How many time zones there are in the world, and how many time zones there are in the world

Name: Local time by country – time zone.

Content. The earth always rotates from west to east, and the east always sees the sun before the west, and the time in the east is always earlier than the west. The difference between the east and west moments is not only measured in hours, but also in minutes and seconds, which brings many inconveniences to people's daily life and work.

In order to overcome the confusion of time, an international longitude conference held in Washington, D.C., in 1884, stipulated that the world be divided into 24 time zones. They are the middle time zone (zero time zone), East 1-12 zones, and West 1-12 zones. Each time zone spans 15 degrees of longitude and the time is exactly 1 hour.

Finally, the 12th East and West Districts each span longitude degrees, bounded by 180 degrees east and west longitude. The time on the **meridian of each time zone is the time uniformly adopted in this time zone, which is called zone time. There is a 1-hour difference in time between two adjacent time zones.

For example, the time in the East 8 Zone of China is always 1 hour ahead of the time in the East 7 Zone of Thailand, and 1 hour behind the time in the East 9 Zone of Japan. Therefore, people who travel abroad must adjust their watches at all times to match the local time. Whenever you go west, you must slow down the watch by 1 hour for each time zone you pass; Whenever you go east, you have to move your watch forward by 1 hour every time you pass a time zone.

In fact, many countries and regions in the world do not strictly calculate time by time zone. In order to adopt a uniform time nationwide, the time in a certain time zone is generally used as the time of national uniformity. For example, China regards the time in the East 8 District, where the capital Beijing is located, as the unified time of the whole country, which is called Beijing time.

For example, countries such as the United Kingdom, France, the Netherlands, and Belgium, although they are located in the middle time zone, use the time in Zone 1 East in order to match the time of most countries in Europe.

China spans 5 time zones.

China is divided into five time zones:

1) Central Plains time zone: 120 degrees east longitude as the **meridian.

2) Longshu time zone: 105 degrees east longitude is the **meridian.

3) New Tibet time zone: 90 degrees east longitude as the **meridian.

4) Kunlun time zone: 75 degrees east longitude (degree is the **meridian.

5) Changbai time zone: 135 degrees east longitude (degree is the **meridian.)

The world is divided into 24 time zones.

Due to the different longitudes of countries and regions in the world, the world is divided into 24 time zones, each spanning 15°. The location of the Greene Chronicles Observatory in London, England is 0°, and the time zone is 0 from east to west.

By analogy, Beijing is located between 105° East and 120° East, which is the 8th East District. The East 12 and West 12 districts are the same area, and the middle line of the East and West 12 districts is the 180° meridian.

The International Date Line (referred to as the date line) is located on the 180° longitude in the Pacific Ocean, and as the dividing line between "today" and "yesterday" on the earth, the actual date line is not a straight line, but a broken line.

24 time zones; For example, the central time zone of London; Berlin in the 1st East District; Cairo, East 2nd District; Moscow, East 3rd District; Lhasa, East 6th District; Chengdu, East 7th District; East 8th District, Beijing, East 9th District, Tokyo, etc.

The International Council of Longitude in 1884 stipulated that the world was divided into 24 time zones according to longitude, each of which accounted for 15° longitude. The time zone with the prime meridian as the ** meridian is the zero time zone, and it is divided into 12 zones from the zero time zone to the east and west, and the east and west 12 zones are all half-time zones, and the local time of the 180° meridian is used together.

**Time zone: London (UK), Lisbon (Portugal).

Zone 1 East: Madrid (Spain), Paris (France).

East Zone 2: Istanbul (Turkey), Cape Town (South Africa), Zone 3 East: Moscow (Russia), Tehran (Iran).

Zone 4 East: Abu Dhabi (UAE).

East Zone 5: Islamabad (Pakistan), New Delhi (India) Zone 6: Dhaka (Bangladesh), Yangon (Myanmar).

Zone 7: Bangkok (Thailand), Kuala Lumpur (Malaysia).

Zone 8: Beijing (China).

East Kowloon District: Tokyo (Japan).

East 10: Vladivostok (Russia), Melbourne (Australia) East 11: Solomon Islands.

Zone 12 East: Wellington (New Zealand).

Zone 1 West: The westernmost point of the African continent.

West Zone II: Mid-Atlantic.

West Zone III: Brasilia (Brazil), Buenos Aires (Argentina) West Zone IV: Santiago (Chile).

West 5th District: New York (USA).

West 6th Zone: Chicago (USA), Mexico City (Mexico) West 7th Zone: Philippine Sedan Knicks (USA).

West VIII: California (USA), Vancouver (Canada) WKW: Anchorage, Alaska (USA).

West 10th District: Honolulu (USA).

West 11th District: Central Pacific.

The time zone where the longitude 0° is located is called the "zero time zone", which includes the area west of east longitude and east of west longitude, and the time in the zero time zone is called "Greenwich Mean Time", or commonly known as "Universal Time". The United Kingdom, France, Spain, Algeria, Morocco, etc., are all in the zero time zone, and the standard time used is universal time.

Zone 1 to the east of the zero time zone, from east longitude to east zone 1. **The meridian is 15°, and its standard time is 1 hour ahead of UTC, and further east is Zone 2, which is 2 hours ahead of UTC.

All the way to the east, there are a total of 12 time zones. Similarly, Zone 1 to the west of Time Zone Zero is Zone 1, which is 1 hour behind Universal Time, and then there are Zone 2, Zone 3, and so on, for a total of 12 time zones. East 12 and West 12 are in the same time zone.

As a result, there are 24 time zones in the world, with 24 standard hours.

The origin of time zones.

In order to take care of the convenience of each region, it is easy for people in other places to convert local time to other places. The international conference decided to divide the Earth's surface into zones from east to west according to the meridians, and to stipulate a time difference of one hour between adjacent areas. People at the eastern and western ends of the same area see the sun rise at most 1 hour.

When people cross an area, they correct their clocks by 1 hour (minus 1 hour to the west and add 1 hour to the east), and add or subtract a few hours when they cross several areas. This makes it easy to use. Today, the world is divided into 24 time zones.

**Time zone: London, United Kingdom, Lisbon, Portugal.

Zone 1 East: Paris, France, Berlin, Germany, Geneva, Switzerland.

East 2: Istanbul, Turkey, Cairo, Egypt, Athens, Greece.

East 3rd Zone: Moscow, Russia, Tehran, Iran.

Zone 4: Abu Dhabi, United Arab Emirates.

Zone 5: Islamabad, Pakistan, New Delhi, India.

Zone 6: Dhaka, Bangladesh, Yangon, Myanmar, Xinjiang Autonomous Region, China: Bangkok, Thailand, Kuala Lumpur, Malaysia, Singapore.

Zone 8: Beijing, China, Hong Kong, Manila, Philippines.

East 9th Zone: Tokyo, Japan, East 10th Zone: Vladivostok, Russia, Melbourne, Australia.

Zone 11 East: Solomon Islands, Zone 12 East: Wellington, New Zealand.

Region 1 West: African continent.

West Zone II: Mid-Atlantic.

West Zone 3: Brasilia, Brazil, Buenos Aires, Argentina West Zone IV: Santiago of Intelligence.

West 5th District: New York, USA.

West 6th District: Chicago, USA, Mexico City, Mexico.

West 7th District: Phoenix, Arizona, USA.

West 8th District: California, USA, Vancouver, Canada.

West Kowloon District: Anker, Alaska, USA.

West 10th District: Honolulu, USA.

The West 112 districts are all in the middle of the Pacific Ocean.

In order to take care of the convenience of each region, but also to facilitate people in other places to convert the local time to the time of other places. The International Conference decided to divide the Earth's surface into zones from east to west along the meridian lines and to provide for a one-hour time difference between adjacent zones. People at the east and west ends of the same area can see the sun rise for up to an hour.

Over the course of a day, the Earth rotates 360 degrees in 24 hours and 15 degrees per hour. In other words, for every 15 degrees of longitude, there is a difference of one hour.

<> then, we define the time when the Sun rises to its highest point anywhere on Earth as 12 o'clock local time. In this way, the time when the sun rises to its highest point is different on different meridians, that is, the time is different on different meridians. This time system is known as local time.

In order to unify time, the world is divided into 24 time zones by dividing the world into 24 time zones by dividing time zones every 15° longitude. Among them, the time zone centered on 0° longitude is the middle time zone (also known as the zero time zone), the east to 180° is the east 12 zone, the west to 180° is the west 1 zone to the west 12 zone, and the east 12 zone and the west 12 zone each span the half-time zone.

Because the Earth rotates from west to east, time increases by 1 hour for each additional time zone from time zero to east, and decreases by 1 hour for each additional time zone from west. The time in the West 12th arrondissement is 24 hours less than in the East 12th arrondissement. People set the clock one hour faster when traveling through one area (one hour to the west and one hour to the east) and a few hours faster when traveling through several areas.

So it's very convenient to use. There are 24 time zones in the world today. For administrative convenience, a country or province is often grouped together, as it is actually common for a country or province to span two or more time zones at the same time.

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It is divided into twenty-four time zones according to longitude, and every 15 degrees is a time zone.

Mainly according to the time of the world, as well as the span of longitude and latitude, through the standard division of ** longitude, there is finally a time zone.

Mainly according to the specified longitude, as well as ** longitude, plus the change of different times, the world's time zones are divided.

1. Central Time Zone: London, England.

2. East 1st District: Paris, France; East 2: Istanbul, Turkey; East 3rd District:

Moscow, Russia; Zone 4: Abu Dhabi, United Arab Emirates. Zone 5: New Delhi, India; East 6th District:

Yangon, Myanmar; Zone 7: Bangkok, Thailand; East 8th District: Beijing; District 9 East:

Tokyo, Japan; East 10: Melbourne, Australia; East 11: Solomon Islands; East 12th District:

Wellington, New Zealand.

3. West Zone 1: Dakar, Senegal; West Zone II: Mid-Atlantic. West 3rd District:

Brasilia, Brazil; West 4th District: Santiago of Intelligence; West 5th District: New York, USA. West 6th District:

Chicago, USA; West 7th District: Phoenix, USA; West 8th District: Vancouver, Canada; West Kowloon District:

Anchorage, USA; West 10th District: Honolulu, USA. The West 112th District is all in the Pacific Ocean.

1.**Time zone: London, United Kingdom, Lisbon, Portugal.

2.Zone 1 East: Madrid, Spain, Paris, France.

3.East 2: Istanbul, Turkey;

4.East 3rd Zone: Russian Ross Moscow, Tehran, Iran.

5.Zone 4: Abu Dhabi, United Arab Emirates.

6.Zone 5: Islamabad, Pakistan, New Delhi, India.

7.Zone 6: Dhaka, Bangladesh, Yangon, Myanmar.

8.Zone 7: Bangkok, Thailand, Kuala Lumpur, Malaysia.

9.Zone 8: Beijing, China.

10.East 9th District: Tokyo, Japan.

11.Eastern 10th District: Vladivostok, Russia.

12.East 11: Solomon Islands;

13.Zone 12 East: Wellington, New Zealand.

14.West Zone 1: The westernmost part of the African continent.

15.West Zone II: Mid-Atlantic.

16.West Zone 3: Brasilia, Brazil.

17.West 4th District: Santiago of Intelligence;

18.West 5th District: New York, USA.

19.West 6th District: Chicago, Mexico City, USA.

20.West 7th District: Phoenix, Arizona, USA.

21.West 8th District: California, USA, Vancouver, Canada.

22.West Kowloon: Araskas, USA, did not touch Craitch.

23.West 10th District: Honolulu, USA.

24.West 11: All in the middle of the Pacific Ocean.