Time has been called the money of the 21st century. 1980’s: We got the VCR, Microwave oven, automatic teller machines, fax machines, Federal Express, home delivery and 24 Hour Convenient Stores. 1990’s: We got the Internet, Cell-phones, TV home shopping, and notebook computers. Common Denominator of all these technological advances is to save time. There is 24 hours in a day; 1,440 minutes in a day; 86,400 seconds in each day. We do not know though how