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11/03/2019 - Geography

iasparliament
March 11, 2019
6 months
875
4

What is meant by Day Light saving time? Discuss its various implications. (150 Words)

Refer - The Indian Express

Enrich the answer from other sources, if the question demands.

4 comments
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IAS Parliament 6 months

KEY POINTS

Daylight Saving Time (DST) is the practice of setting the clocks forward one hour from standard time during the summer months, and back again in the fall.

The rationale behind setting clocks ahead of standard time, usually by 1 hour during springtime, is to ensure that the clocks show a later sunrise and later sunset — in effect a longer evening daytime.

Implications

Positive

·        Less than 40% of the countries in the world use DST to make better use of the natural daylight in the evenings.

·        The difference in light is most noticeable in the areas at a certain distance from Earth's equator.

·        Some studies show that DST could lead to fewer road accidents and injuries by supplying more daylight during the hours more people use the roads.

·        DST is also used to reduce the amount of energy needed for artificial lighting during the evening hours. 

Negative

·        But, modern society uses so much energy-consuming appliances all day long that the amount of energy saved is negligible.

·        Disruption of the body clock or circadian rhythm, disrupted sleep patterns might affect memory, learning, social interactions and overall cognitive performance.

·        USA Today, cited a study that found DST increases the risk of heart attack by 25%, while a return to original times lowers the risk by 21%. 

Sandeep 6 months

Kindly review thanks

IAS Parliament 6 months

Good answer. Keep Writing


Keerthi 6 months

Kindly  review

IAS Parliament 6 months

Good answer.  Keep Writing.


Raj 6 months

Kindly Review. Thanks!!

IAS Parliament 6 months

Try to stick to the word limit. Keep Writing.


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