When Do We Set Our Clocks Back for 2009? The time change to set our clocks back for fall 2009 is tonight.

The Daylight Saving time clock change is November 1, 2009. So before you go to bed, you set your clocks back tonight. Most computers and cellphones should automatically make the change. However, some LALATE readers have commented that their computers incorrectly changed time last Sunday.

Why then?

Two years ago, the fall back date for Daylight Savings Time was changed. It traditionally had been the last Sunday of October. Now every first Sunday of November we set our clocks back one hour.

And when do you we make the change in the spring? Clocks are changed the second Sunday in March each year. Hence, your next clock change is March 14 2010.

While slang refers to it as “Daylight Savings Time”, the correct name is “Daylight Saving Time”. Many historians put the earliest derivation coming from Roman use. Romans employed a series of clocks that would be changed at different parts of the years. The modern version is credited to George Vernon Hudson in 1895.