How To Set Time Zone On Samsung Tablet

If you board a plane in New York at iii p.yard. and head due west, you land in San Francisco at 6:40 p.yard. despite the fact that yous were in the air for almost seven hours. As you crossed the country, you went back in fourth dimension—or and then it seems. In a fashion you did. During your flight, yous went from one time zone into another. To empathise how this works, you need to know how to convert between time zones.

Understanding Time Zones

When people talk about time zones, they're referring to the way people suit the clock as they move toward or abroad from Coordinated Universal Time (UTC). Fourth dimension advances one hour for every 15 degrees e y'all move from the Prime Meridian in Greenwich, London. Each one hr increment represents a time zone. When yous arrived in San Francisco at 6:40 p.m., it was too 9:40 p.m. on the New York time clock.

Time zones are a relatively recent invention. People used to tell time past the position of the sun. Each customs set the official clock at noon when the sun reached its highest spot in the heaven. As a result, noon in Washington, D.C. took identify before noon in Chicago.

When people started using the railroad to travel and transport goods across the United States, they constitute local times confusing. It was hard to coordinate train schedules. The solution was to divide the country into four time zones: eastern, fundamental, mountain and pacific. Inside each region, all the clocks displayed the same time.

Universal Coordinated Time

In 1884, representatives from select countries met at the International Pinnacle Conference in Washington, D.C. During the conference, the members decided to designate the line of longitude that passes through Greenwich, England, equally the Prime Top. This imaginary line became the standard for Coordinated Universal Time (UTC).

The earth uses UTC to regulate clocks. Some people use the terms Coordinated Universal Time and Greenwich Mean Time (GMT) interchangeably, but they are not exactly the same. UTC is the time standard. GMT is a time zone that includes parts of Europe and Africa.

How Many Time Zones Are in the Earth?

Since at that place are 24 hours in a day, information technology makes sense to accept 24 time zones in the earth. There are, nonetheless, more than 30 time zones across the earth. Some of these time zones accept increments of 30 minutes or 45 minutes, merely nigh of them correspond one hour.

Fourth dimension zones don't follow a direct line from northward to due south. In some countries, the time zone edge follows the country'due south political edge. Other countries, like China, have only ane time zone. If you wait at a map of the globe's time zones, you see jagged lines where they adjust to accommodate these countries.

Calculating Time Differences

Calculating time differences is adequately simple and requires basic addition and subtraction. You add as you motility east and decrease as you move due west. Eastern Standard Time is five time zones due west of Greenwich Mean Time, so you subtract five hours from UTC to determine the time in New York. Nihon Standard Fourth dimension is 9 time zones east of Greenwich Mean Fourth dimension, so you add nine hours to UTC to calculate the time in Tokyo.

For example, if you're in Los Angeles and want to know what time information technology is in Paris, you count the number of time zones between the two cities. At that place are nine fourth dimension zones betwixt them. When it'southward one:00 p.one thousand. in Los Angeles, information technology's 10:00 p.thousand. in Paris. The exception to this is a time zone with a xxx- or 45-minute increment.

Daylight Saving vs. Standard Time

Benjamin Franklin came upward with a plan to alter fourth dimension on the clock and move it ahead ane hour in the summer. This gave him an actress 60 minutes of natural light in the evening, so he wasted less fuel on lighting. More 100 years later on, the United States adopted Daylight Saving Fourth dimension as a style to conserve energy during World War I.

The The states isn't the merely land to detect Daylight Saving Time. Almost countries in North America, Europe and parts of South America and Australia switch to a course of Daylight Saving Time during the summer. This also makes it more than difficult to convert between time zones, so many people utilize a time zone calculator when they need to know what time it is in another office of the world.

Source: https://www.questionsanswered.net/travel/how-to-convert-times-between-time-zones?utm_content=params%3Ao%3D740012%26ad%3DdirN%26qo%3DserpIndex