Friday, January 11

Daylight Saving Time (DST)

Why do Americans every year wake up at 2o'clock on second Sunday in the month of march and change their clock timings with 1 hour ahead and reduce it by 1 hour every first Sunday again in the month of November in the same year?

why is the same practice followed by the Europeans every year but at 1o'clock in the morning of every last Sunday in the month of march and bring it back to normal timing by same 1 hour in the month of October on last Sunday?

Well, this is the concept of daylight saving time (DST) popularised by Benjamin Franklin.

This is done in order to increase the day's length by 1 hour in summers and is famously known with the name of "daylight shifting time".

This is now practically taken up by the president of America in 2005 in his energy policy act.

The department will analyze the impact of this change in timings on energy throughout this period.

Why at 2 only in the morning this practice is followed?

To answer this, it is the time when most of the America is sleeping and minimum number of trains is running and people who works in shifts has also not started with their shifts.

For the U.S. and its territories, Daylight Saving Time is NOT observed in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, the Commonwealth of Northern Mariana Islands, and Arizona.

The main purpose of Daylight Saving Time is to make better use of daylight. People in America want to enjoy the long summer evening so they followed the concept of DST. Also, by moving the clock 1 hour ahead they slept early in nights and saved one hour energy.

But this is of no advantage in the months from November to February, as there is no 1 hour concept during this period, people tend to stay home because of the chill weather and consume more energy by loading various electrical appliances.

In most parts of America liquor is prohibited after 2 but in the fall they were allowed to have liquor because of the extra 1 hour people had because of the daylight saving time.

DST is also useful in reducing traffic accidents.

Daylight Saving Time is usually not helpful in the tropics, and countries near the equator generally do not change their clocks. This concept was opposed by most of the people later.

People argued what happen if "some unfortunate lady was confined with twins and one child was born 10 minutes before 1 o'clock. ... The time of birth of the two children would be reversed. ... Such an alteration might conceivably affect the property and titles in that House".

This act is still followed in approximately 70 countries all over the world except India, Japan and China.

To my surprise, a brief mention about it was also made in the movie "National Treasure" starring Nicholas Cage.

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1 comment:

  1. This was quite informative..thanks for this post...
    Understood the conept and would like to listen to more of those real life examples...


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