Time Really Flies

These days time really fly extremely fast. It was 3 months ago that I was sitting in church on the 31st of December 2007 to usher in 2008. Next thing I know it is already March and it is Easter this week. I really don't know how on earth time fly so fast and . It is sad to see if we didn't really spend our hours / minutes / seconds nicely either. Looking back and asking how I spend my time, all I can say it is work, church, computer games, sleeping, holidays and maybe many other things that I might have done but I can't recall. To me when I was younger the time does not fly so fast. Why is it when we get older time flies so fast? I really don't know either.