How To Change Your Time Zone On Twitch

If yous board a aeroplane in New York at iii p.1000. and head west, you land in San Francisco at 6:twoscore p.m. despite the fact that you were in the air for virtually seven hours. As you crossed the land, you went dorsum in time—or then it seems. In a way yous did. During your flight, y'all went from one time zone into some other. To empathise how this works, you need to know how to catechumen between fourth dimension zones.

Understanding Fourth dimension Zones

When people talk about fourth dimension zones, they're referring to the way people adjust the clock as they motility toward or away from Coordinated Universal Fourth dimension (UTC). Time advances one hour for every 15 degrees east you move from the Prime Superlative in Greenwich, London. Each 1 hour increment represents a time zone. When you arrived in San Francisco at 6:40 p.chiliad., information technology was besides 9:40 p.k. on the New York time clock.

Why Did Countries Start Using Time Zones?

Fourth dimension zones are a relatively contempo invention. People used to tell time by the position of the sun. Each community set the official clock at noon when the lord's day reached its highest spot in the sky. Every bit a upshot, noon in Washington, D.C. took place before noon in Chicago.

When people started using the railroad to travel and ship appurtenances beyond the United states, they found local times confusing. It was difficult to coordinate railroad train schedules. The solution was to dissever the state into iv fourth dimension zones: eastern, central, mountain and pacific. Within each region, all the clocks displayed the aforementioned time.

Universal Coordinated Fourth dimension

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

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

How Many Time Zones Are in the World?

Since there are 24 hours in a day, it makes sense to take 24 time zones in the world. There are, yet, more than thirty fourth dimension zones across the world. Some of these time zones take increments of thirty minutes or 45 minutes, only most of them represent ane hour.

Time zones don't follow a straight line from north to s. In some countries, the time zone edge follows the country's political edge. Other countries, like China, accept only 1 time zone. If y'all look at a map of the globe's time zones, you see jagged lines where they suit to accommodate these countries.

Calculating Time Differences

Computing time differences is fairly elementary and requires basic addition and subtraction. You add as yous move east and decrease every bit you move west. Eastern Standard Time is 5 time zones west of Greenwich Mean Time, and so you decrease 5 hours from UTC to determine the time in New York. Japan Standard Time is nine time zones eastward of Greenwich Mean Time, so y'all add nine hours to UTC to summate the time in Tokyo.

For case, if you're in Los Angeles and desire to know what time information technology is in Paris, you count the number of fourth dimension zones between the two cities. There are ix fourth dimension zones between them. When it's 1:00 p.thousand. in Los Angeles, it's x:00 p.grand. in Paris. The exception to this is a time zone with a thirty- or 45-infinitesimal increment.

Daylight Saving vs. Standard Fourth dimension

Benjamin Franklin came up with a program to change fourth dimension on the clock and move it ahead 1 hour in the summertime. This gave him an extra 60 minutes of natural light in the evening, and then he wasted less fuel on lighting. More than than 100 years subsequently, the United States adopted Daylight Saving Time equally a style to conserve free energy during World State of war I.

The U.s.a. isn't the only state to observe Daylight Saving Time. Most countries in North America, Europe and parts of Southward America and Commonwealth of australia switch to a form of Daylight Saving Time during the summertime. This also makes it more difficult to convert between time zones, so many people employ a time zone computer when they need to know what fourth dimension 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

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