Daylight Savings – Why do We Have DST?
Daylight Saving Time, simply called DST is a seasonal time change measure used worldwide to make better use of daylight and to conserve energy.
One of the main aims of DST is to make people’s active hours match with the daylight ones so that less artificial light is needed. Therefore much of the world (over 70 countries) adjust clocks forward one hour close to the start of spring and adjust them backward in autumn to standard time.
This change affects over 1 billion people every year and it varies from one country to another.
Why China Doesn’t Have Daylight Saving Time?
In China, as several Asian countries such as Japan, South Korea, Taiwan and India, the daily clock remains unchanged throughout the year, but this wasn’t always the case for China. From April 1986 to September 1991, in fact, the Chinese Government decided to institute the DST because a study from Peking University showed as that could save up to 2 billion kilowatt hours of energy per year.
Why did China stop using DST?
It is estimated that the country saved 700 million kilowatt-hours in 1986, but, despite this overwhelming factual evidence of energy conservation, in 1991 Chinese Government decided to stop adopting the Daylight Saving Time, due to its unpopularity.
Since April 1986, in fact, many Chinese people complained about the time change, and in some cities, especially in Guangzhou, many people completely ignored it. Since DST is not adopted in China anymore, when scheduling a call from or to the Middle Kingdom, make sure you consider time differences will vary during the year, as many countries observe DST during different periods while China doesn’t!
NB: China used to have five time zones but combined them into just one in 1949. The result is that in some regions the sunset can be seen as late as 10 pm.
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