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How are time zones divided? How to calculate the time in the world? The more detailed the better, thank you ......
Q: time zone time division

A: Moscow longitude: longitude 37 ° 35', located in the East 3; Vladivostok longitude: longitude 131 ° 53', located in the East 9, the difference between the two places 6 time zones.

If the time in Moscow is 10 o'clock, the time in Vladivostok should be 16 o'clock

Answer: Divide the longitude by 15, and if the remainder is greater than 7.5, add 1 to the quotient obtained to be the time zone

If the remainder is less than 7.5, the quotient obtained to be the time zone

Such as 120 degrees East longitude in Beijing, divide 120 by 15 to get 8, the remainder is 0, so the time zone in Beijing is 8 East. Beijing's time zone is 8 East

A: First of all, we need to know the longitude of the proposed city, and then use the longitude to determine the city's time zone. The method is to use the longitude divided by 15, the resulting number rounded to the nearest whole number, is the city's time zone. Finally, look at the time zone and the East 8 (China's Beijing time) difference of a few time zones, that is, the difference of a few hours, so you can calculate the time of the city.

15:00 It's about the same. Depends on how many time zones they are. The world's time zones are based on the prime meridian. From 7°30' West to 7°30' East (with a longitude interval of 15°) is the zero zone. By the zero time zone of the two boundaries respectively to the east and west, every longitude interval of 15?delineate a time zone, east and west each delineated 12 time zones, east twelve time zones and west twelve time zones overlap; the global * * * divided into 24 time zones. Each time zone takes the local flat solar time at the central meridian as the standard time for the zone. The difference in standard time between two neighboring time zones is one hour. Time zone boundaries. Line in principle in accordance with the geographic meridian division, but in the specific implementation of the often according to the administrative boundaries of the countries or natural boundaries to determine the ease of use. At present, most countries around the world have adopted the standard time in units of zone time and maintain a difference of a full number of hours from Greenwich Mean Time; however, some countries still use the local time of their capitals or important commercial ports as the country's standard time. In this way, the difference between the standard time of these countries and Greenwich Mean Time is not a whole number of hours, but a difference of hours and minutes. When it comes to the question of time, it is necessary to mention an important line - that is the date change line. As the Earth rotates, time advances sequentially across the planet, and dates change accordingly. To avoid confusion, the International Date Line (IDL) is roughly defined as the dividing line between "today" and "tomorrow" on Earth, and because it avoids the continents, it does not coincide exactly with the 180° meridian. When the International Date Line is crossed from west to east, the date is subtracted by one day.

In longitude, 15 degrees is a time zone. If the time in Moscow is 10 o'clock, is the time in Vladivostok 17 o'clock? 24-hour calculation