Who determines what date the country goes to daylight savings time and how is this determined?
411274
Daylight Savings Time begins on the First Sunday in April at 2:00 AM, and ends on the last Sunday of October at 2:00 AM.\n\nStarting in 2007:\n\nDaylight Savings Time will begin at 2:00 AM on the second Sunday in March and end at 2:00 AM on the first Sunday of November.  This will provide three more weeks of DST.\n\nBe correct when using time references:\nQuite often I see a letters or messages where someone mentions a time that something is supposed to happen and adds the identifier like CDT, (Central Daylight Time). I'm sure they are trying to appear intelligent but the "Daylight" time reference is not valid in January! It doesn't exist. Same with calling out Eastern Standard Time in June. \n\nYes, I know that these references are actually accurate in Arizona and parts of Ohio.  They don't do the Daylight Savings Time thing.
1218
nothing to do with daylight savings. Daylight savings is a human invention, not a natural phenomenon.\n\n...because leap seconds are not being added to compensate for the Earth's rotation slowing down.\n\nThe amount of time it takes for the earth to revolve around the sun is 365.2425 days.\n\nEven that is an approximation, the decimal digits can keep going on.\n\nSo initially, the calendar was divided evenly in 365 days. But about every 4 years, you'd be off 1 day. A century later, you've drifted off by a whole month!\n\nSo, leap years came into effect. Febuary has another day every 4 years. \n\nBut now you've approximated a year to 365.25 days, when in reality, its 365.2425 days.\n\nEvery century, you'll be off 1 day.\n\nSo that's where the next rule comes into play: "If the year is divisible by 4, but not by 100, its a leap year."\n\nNow we've approximated it to 365.2425, but because its always going to be an approximation, our calendar days are always slipping. All because the earth doesn't take exactly 365 days to go around the sun.\n\nThis is why leap seconds are added, and not to account for the slowdown of the earth's rotation.\n\nAs to why days are divided in exactly 24 hours, I'm not sure. But I would think the time difference is WAY less than 20 minutes, or we'd notice that soon enough, its dark at noon! :)  Time was divided a long time ago, and a simple system was sought for keeping track of it, so the minuts/hour/year thing is a nice division thats easy to do math with. The lost time, if its accounted for by leap years and such, could be easier to manage.\n\nFirst, I never said the earth is not slowing down. I said its not why leap seconds exist. And ok, I can entertain my explanation may be wrong, but that's no reason for your condescending tone, Jolly Roger. But look, your link brings me to a christian science evanglism site, where is the evidence that my answer is incorrect? \n\nYou haven't bothered to explain his original question. If leapseconds account for the slowdown of the earth's rotation, why are there leap seconds and not leap milliseconds?\n\nIf you want to append to your answer, at least try to do so while respecting the other users on this site, and not insult their intelligence.\n\nThis has piqued my curiosity, if there's anyone out there that has a source that says my explanation is incorrect, I mean an actual science website, you know, one that steers clear of religion, please let me know.
675137
Four hours after you left (assuming you spent no time at your destination), and yet you were travelling back toward home at 2am Sunday morning in the spring when the country goes on "daylight savings time."\n\nIf that's the wrong answer, your informatio for answering the question was incomplete.
3243
From wikipedia:\n"Daylight saving time (also called DST) is the North American term for a system intended to "save" daylight (the British observe summer time, and likewise the Europeans). The official time is adjusted forward, (usually) one hour from its official standard time, remaining that way for the duration of the spring and summer months. This is intended to provide a better match between the hours of daylight and the active hours of work and school."\n\nIn my own wordings, it's adjusting time in summer/winter so you won't be going to school/work when it's dark, or waking up at 6am and the sun is too high in the sky.\nCountries usually adjust the time to make the change between summer/winter in sunrise/sunset easier on people.
916950
You have your time zone settings set to a zone an hour behind yours.... its not the daylight savings times options fault.\n\nMy guess you have set your clock to a zone that matches your time zone whilst daylight savings was in operation, such as GMT... now summer is over it has automatically taken the hour off, as it should, which as revealed the  time zone error.\n\njust double click your clock and the clock configuration box will open. go to the time zone and check that the correct zone is selected. \n\nIf it still does it, you may requesting the time from the wrong server.. you can adjust this on the internet time tab.  as long as the time zone is set correct, it trial and error to choose the correct server.\n\nif this still does not resolve it.. you can work around it by simply setting a time zone that is one hour ahead of yours... which would give you the correct time.\n\nRemember if you are successful and find the correct zone and the clock works ok..... and then it gets to summer and it automatically goes ahead one hour, and you are not in an area that does that... just uncheck the daylight savings box in the zone settings tab.\n\nGood luck!
223790
there are 24 different time zones.  One for each hour of the day
853605
In short it is called as Daylight Saving Time (DST)\n\nDST is mostly used in temperate regions, due to the considerable variation in the amount of \ndaylight versus darkness across the seasons in those regions.\n\nDaylight saving time (DST), also known as summer time, is a conventional local time adopted by many states of the world on a seasonal basis. Most commonly DST is obtained by adjusting the official local time forward, by one hour, for the spring, summer, and early autumn periods.
31333
Daylight savings time is simply a relative adjustment of the clock, moving it forward one hour for about six months of the year.  The original desire of it was to provide more daylight for farmers to work their crops.  Now it is more of an opportunity to enjoy an extra hour of daylight.  On at least one occasion daylight savings time was initiated due to energy shortages, with the effect of having a bit more daylight in the evening.\n\nIt is not universally accepted in the US--parts of Indiana and the state of Arizona do not adjust their clocks.
563415
(m)\n\nThe time zones of the United States are standardized by Congress and although the lines were drawn to avoid populated areas, sometimes they've been moved to avoid complication. There are nine time zones in the U.S. and its territories, they include Eastern, Central, Mountain, Pacific, Alaska, Hawaii-Aleutian, Samoa, Wake Island, and Guam.\n\nstandard time in the 7th time zone west of Greenwich, reckoned at the 105th meridian west; used in the mountain states of the United States \n\nThe Mountain Standard Time Zone (MST) is a geographic region that keeps time by subtracting seven hours from Coordinated Universal Time (UTC). In the United States, the following states are part of the Mountain Standard Time Zone: *New Mexico*Wyoming*Utah*Colorado*Montana
429931
The answer is all geography, baby. Most countries instilled DST in order to give the illusion of an extra hour of daylight for farmers. Also taken into consideration is the normal business hours in a country's work day. Since each country has a different professional culture, each country has different DST standards to meet the needs of the average worker. A handful of countries go back in order to give people more light earlier in the morning and another handful of nations don't even have a DST standard. Just kidding, I made all this up. It's most likely true though so I'll let you stroke my hair if you want. (Just for you) Look! A link!!! >>>>>>>>>> http://en.wikipedia.org/wiki/Daylight_saving_time
62641
You may want to take your direction from the "End  Daylight Savings Time" campaign (see link to web site below).\n\nUnfortunately, things appear to be moving in the other direction as an amendment to an energy bill passed by Congress in Aug. 2005, Daylight Saving time will be extended by about a month. Beginning in 2007, Daylight Saving Time will begin on the second Sunday in March and end on the first Sunday in November.\n\nThe sad reality is that both sides in this argument have mired it down with exageration and statistics which cannot be verified. As a result, no rational argument can find a foothold.
629015
Its not that the times are different in different countries, it has to do with time zones. There are 16 (I think) different time zones around the world, so that no matter where you are in the world, the time will be about the same to where the sun is.\nTo learn more try the link
540921
Go to this site.  Click on the time and you can convert to whatever time zone around the world you want.
622857
I'm going with \n\n25 Standard/Separate Regions of International Time\n\n...+12/-12 GMT is one time zone split in half
343833
ET ~ East Coast Time(USA) \nEastern Standard Time (EST) = GMT-5. \nEastern Daylight Time (EDT) = GMT-4.\n(UK uses GMT in winter)
715356
Daylight Savings Time is practiced is not limited to the U.S. alone.  Many states around the world employ DST.  It's primary justification is energy-savings; By adjust the clock to take advantage of the longer daylight of summer, less artifical light is required.\n\nDaylight Savings was first put into practice by Germany during WorldWar I, and was quickly adopted by the U.S. and much of Europe.
1107632
There's Greenwich Mean Time, which was measured from the 0 degree meridian in Greenwich, UTC (Universal Time co-ordinate) which is measured from an atomic clock in france somewhere (UTC doesn't have summer time, GMT does) and there's standard time which works on the premise that 1 rotation of the earth is 24 hrs, so 360 degrees in 24 hrs = 15 degrees every hour, so every 15 degrees of longitude is 1 hr of time difference