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.
