Longitude and latitude and time difference: How much is the time difference in a longitude

Internationally, every 15° is divided into a time zone, and the world can be divided into 24 time zones. Take the prime meridian.

As the benchmark, from west longitude to east longitude, it is divided into a middle time zone (or 0 time zone). To the east of the Central Time Zone, it is divided into East 1 to East 12; To the west of the Central Time Zone, it is divided into West 1 to West 12. The East 12 and West 12 are the same time zone (generally known as the East and West 12 districts, which are based on the 180° longitude and go from east longitude to west longitude!).

At what time, the East 12th District is always 24 hours earlier than the West 12th District, that is, one day, but the time is the same, for example, the East 12th District is 23:57 on March 6, 2016, and the West 12th District is 23:57 on March 5, 2016!

That is to say, 15° for an hour, each longitude is 4 minutes.

Calculate the longitude difference between the two places:

1) If the known place and the sought place are in the same east longitude or the same west longitude, then: longitude difference = degrees of greater longitude and less degrees of longitude.

2) If one of the known and the sought land is in east longitude and the other is in west longitude, then: longitude difference = the addition of the longitude of the two places.

Transform the longitude difference into the local time difference between the two places, i.e., local time difference = 15° hours of longitude; or longitude difference x 4 minutes per degree (1 hour = 15 degrees, 1 degree = 4 minutes.)

Weft

The parallel, like the meridian, is an auxiliary line hypothesized by human beings for the convenience of measurement, and is defined as the rotation of a point on the earth's surface with the earth.

The trajectory formed. Any one of the wefts is round and parallel to each other. The length of the parallels is the circumference of the equator multiplied by the cosine of the latitude of the parallels.

Therefore, the equator is the longest, and the farther away from the equator is the latitude, the shorter the circumference, and it shrinks to 0 at the poles.

From the equator to the north and south, each 90°, is called the north and south latitudes, which are denoted by "n" and "s", respectively. The longitude is divided into east and west, the guide is north, and the latitude is divided into north and south, referring to east and west.

Longitude and latitude are both terms used to describe the location on the Earth, while the time difference is related to the rotation of the Earth and the alternation of day and night.

First, longitude is an indicator used to describe the direction in which various locations on the Earth are located in an east or west direction. An increase in the value of longitude to the east is the east longitude, and an increase to the west is the west longitude. The east-west longitude is 180 degrees.

Second, latitude is an indicator used to describe how close the various positions on the Earth are to the equator or the polar regions. The southern latitude is the southern latitude that increases to the south, and the northern latitude that increases to the north. North-south latitude is a latitude and is 90 degrees.

Finally, time differences are usually due to the Earth's rotation and the alternation of day and night. For example, when we are in the Eastern Hemisphere, the time difference between us and the countries in the Western Hemisphere may be presumptuous. To calculate the time difference, we can use the longitude difference divided by the sail lift by 15.

Because every 15 degrees of longitude corresponds to 1 hour on Earth, the difference in longitude divided by 15 gives the time difference.

Overall, latitude and longitude and time difference are three geographical concepts that are independent of each other that describe different but related phenomena and things.

Latitude and time difference are cleared.

It doesn't matter, there is a relationship between longitude and time difference. Be clear about the following:

1. Same in the same meridian place;

2. The difference in longitude is 1 degree, and the difference in place is 4 minutes; The difference in longitude is 15 degrees, and the difference in local time is 1 hour.

Longitude determines time, latitude determines climate.

The longitude is east-west, the latitude is north-south, the earth revolves around the sun, and at the same time rotates, revolution forms seasons, and rotation forms day; The time in the east is always earlier than the time in the west. Latitude affects the length of days and nights in the wild area, which depends on what season it is, in summer, the high latitudes of the northern hemisphere are daylight, that is, almost all day is daytime, and the high latitudes of the southern hemisphere are night; The days are getting longer as the latitude rises in the Northern Hemisphere, and the nights are getting longer as the latitude rises in the Southern Hemisphere.

1. The earth has 180 degrees east longitude and 180 degrees west longitude, a total of 360 degrees, and a total of 24 hours in a day, so the time of the difference in latitude = 24 divided by 360 = 1 15 hours = 4 minutes.

2. Latitude can be divided into astronomical latitude, geodetic latitude, and geocentric latitude. Geocentric latitude refers to the line between a point and the earth's sphere and the angle of the earth's equatorial plane, geodetic latitude refers to the angle between the normal of the ground and the equatorial plane, and astronomical latitude refers to the angle between the plumb line direction of the place and the equatorial plane. What we usually call latitude is geodetic latitude.

Our measurement of time is artificially set by the standard, first of all, we divide the day into 24 hours according to the rotation period of the earth. It is also stipulated that the geographical coordinates of the Greenwich Observatory in the United Kingdom are 0 degrees of longitude, and the boundary is divided into 180 degrees to the east and west. In particular, the longitude of 180 degrees east and 180 degrees west of longitude overlap, and this particular meridian is also called the date line.

Every 15 degrees of longitude is divided into a time zone, so the world can be divided into 24 time zones.

It can also be seen that the division of time zones is only related to longitude and not latitude. Latitude divides the Earth into the northern and southern hemispheres, while longitude divides the Earth into the eastern and western hemispheres. Time in the Middle East is generally faster than time in the Western Hemisphere, with Beijing in the East 8th Region being eight hours ahead of standard GMT and Japan in the East 9th being nine hours ahead of Greenwich Mean Time.

This means that every 15 degrees of longitude from the date line to the east will be one hour faster, and one hour slower to the west.

This is how the time difference comes from, and what is the reason for such a division? Because of the Earth's rotation and its opaque, sphere-like shape, the sunrise time varies from place to place, which means that people from place to place will have a certain difference in their schedules. In order to ensure that people have a sense of identity with time, the time difference will be set.

If a country spans too many countries, there will also be time differences within countries. But for the convenience of managing the country, a country mostly uses uniform time even if it is time difference. For example, geographically, there is actually a difference of two time zones between Xinjiang and Beijing, but China uses Beijing time.

Determined by longitude. Different longitudes, different local times; Same in places of the same longitude; The east longitude is earlier than the west longitude. For every 1° difference in longitude, there is a difference of 4 minutes between binas, and for every 15° difference in time, there is a difference of 1 hour.

The subtraction of the standard time (the number of real-time zones) of the two time zones is the time difference, and the time when the number of time zones is larger. For example, China is the East 8th Zone (+8), and the East of the United States is the West 5th Zone (-5), the time difference between the two places is 13 hours, and Beijing is 13 hours earlier than New York; If it is a period when daylight saving time is implemented in the United States, the difference is 12 hours.

a Where the longitude is the same, the local time is the same.

b Since the earth rotates from west to east, the time in the west is always earlier than the time in the east.

c The magnitude of the time difference between two places on the earth is determined by the magnitude of the difference in latitude between the two places.

d As the Earth rotates, the magnitude of the time difference varies from one year to the next.

Answer: a. This question examines the place. The time system generated by different longitudes is local time, so the longitude is the same, and the local time is the same.