India, Oct. 25 -- Every year, most people in America change their clocks twice, once in spring to make the time go one hour ahead, and again in fall to make it one hour back. This ritual is called Daylight Saving Time (DST). It has been followed for more than 50 years, but many people still question why it is done and if it should continue.

According to USA Facts, DST is meant to make better use of daylight by shifting an hour of sunlight from the morning to the evening. The United States has followed this practice for decades, though the idea continues to spark debate in both state legislatures and Congress.

At least 45 states have considered or passed laws to permanently shift to either Daylight Saving Time or permanent standard time....