Interesting trivia: Daylight savings might only be worth the effort for countries in the middle-latitude range (largely Europe, Americas and Australia/NZ). The closer you are to the equator, there's little variation in daylight and thus it doesn't matter.
Surprisingly the farther up north you are, there is so much variation that 1 hr doesn't really matter when your days go from 19 hrs long to less than 5 hrs. So Iceland for eg. does not practice Daylight Saving time.
That's true, but note that China and India, together with 2.6 billion / 7 billion people don't have daylight saving. The former for political, the latter for latitude reasons. Another big country to abolish it recently is Russia.
Just to note that Russia abolished the switching of clocks but didn't really go back to 'standard time'.
> Russia moved its clocks one hour forward to daylight saving time on March 27, 2011. According to the new legislation this is now the country's new standard time. As a result, all of Russia's nine time zones will be permanently two hours ahead of mean solar time, which corresponds to the position of the sun at a given longitude.
http://www.timeanddate.com/news/time/russia-dst-law.html
If you consider the area between the Tropics of Cancer and Capricorn the answer is yes. That's why DST was devised by people who live north of the Tropic of Cancer.
Surprisingly the farther up north you are, there is so much variation that 1 hr doesn't really matter when your days go from 19 hrs long to less than 5 hrs. So Iceland for eg. does not practice Daylight Saving time.
There should be a better reference: http://wwp.greenwichmeantime.com/time-zone/europe/iceland/