Here is a video explaining what really is Daylight Saving Time.
According to a CNN article that I read online, "the idea for daylight saving came from legendary American inventor, statesman and founding father Ben Franklin who, in a 1784 letter to a French journal, suggested that Parisians could save thousands of francs annually by waking up earlier in the summer so they wouldn't have to buy so many candles to light the evening hours".
Now that you know what DST is, make sure to set your clock back. As for me, since we don’t have DST here in my country, I don’t have to worry about my clock. I have to worry about my Christmas list though, I still have a lot of things on my to do list and Christmas eve is just around the corner!