Daylight saving time started for most of the United States and Canada on Sunday, 8 March 2009 at 2 am and will revert to standard time on Sunday, 1 November 2009.  Europe though as a whole started the last Sunday of March and finishes the last Sunday of October so they a few weeks less than the US.

In the Southern Hemisphere daylight saving will starts in October with Australia starting Sunday, 4 October at 2 am.  New Zealand started on 27 September at 2 am while Chile starts on 11 October at midnight and Argentina and Brazil on 18 October also at midnight.

Moving clocks forward at the beginning of daylight saving and then back at the end can be confusing if you try and convert the time back to standard time.  You hear people commenting "It's really only 10 am and not 11 am" when it's easier to accept the current time and adjust your life accordingly.

It may be a hassle changing the clocks if you have many in the house like I do, besides the many watches and even the cell phones, but remember it's only twice a year you need to do this.  Why not mark it on your calendar to change the clocks, watches and the even the smoke detectors that way you can't forget.

If you wake up at the same time everyday then you will probably wake up at standard time for awhile so make sure you set your alarm clock until your internal one catches up.  I make sure by having two alarm clocks for about a month so that I am not late for work.

Just don't forget to change the clock.