What is the concept and challenges behind Daylight saving time(DST)?
Daylight saving is introduced to save the daylight in the non-tropical regions of the world. It is done by turning the clock one-hour ahead when summer approaches so that darkness falls later each day according to the clock. The clocks are again set one-hour back to standard time when winter approaches so that the morning lights can be saved. Winter brings very early nights in cold countries. Only a minority of the World's population uses DST. Most areas in Europe and North A