Is there a detailed map of time zones around the world?

The detailed map of time zones around the world is as follows:

The earth rotates from west to east. The east sees the sun earlier than the west, and the time in the east is earlier than that in the west. The difference between the east time and the west time must be calculated not only in hours, but also in minutes and seconds. In order to overcome the confusion in time, at an International Longitude Conference (also known as the International Meridian Conference) held in Washington in 1884, The regulations divide the world into 24 time zones (12 time zones in the east and 12 in the west).

It is stipulated that the United Kingdom (the former site of Greenwich Observatory) is the central 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 one hour. The final east and west districts 12 each span 7.5 degrees of longitude, bounded by 180 degrees east and west longitude.

The time on the central meridian of each time zone is the time uniformly adopted in this time zone, which is called zone time. The time difference between two adjacent time zones is 1 hour.

For example, the time in East District 8 of China is always 1 hour ahead of the time in East District 7 of Thailand, and 1 hour behind the time of East District 9 of Japan. Therefore, people traveling abroad must adjust their watches at any time to be consistent with the local time.

Whenever you go west, you need to set your watch back one hour each time you pass through a time zone (for example, from 2 o'clock to 1 o'clock); when you go eastward, you need to set your watch forward every time you pass a time zone. 1 hour (for example, dial 1 o'clock to 2 o'clock). And it is stipulated that Britain (the former site of Greenwich Observatory) is the prime meridian, which is the zero degree longitude. Extended information

The time zone range is the central meridian minus 7.5 degrees to the left and right, that is, it spans 15 degrees in the east-west direction. Taking the East Eighth District as an example, the time zone range is from 112.5 degrees east longitude to 127.5 degrees east longitude. Divide the longitude of the place by 15 degrees. When the remainder is less than 7.5 degrees, the quotient is the time zone number of the place. When the remainder is greater than 7.5 degrees, the quotient plus 1 is the time zone number of the place.

If it is known that a place is located at 145 degrees E, use 145/15, the quotient is 9, and the remainder is 10>7.5. The quotient plus 1 is the time zone number of the place, so the place is located in the east District 10. If a place is located at 65 degrees W, use 65/15, the quotient is 4, and the remainder is 5 < 7.5. The quotient is the number of time zones where the place is located, then the place is located in West Zone 4.

Baidu Encyclopedia-Time Zone