When Is Daylight Savings 2012?

Daylight Savings Time in the U. S. in 2012 started on Sunday, March 11 and ended on Sunday, November 4.

English: Engraved brass horizontal sundial cor...

Engraved brass horizontal sundial corrects for latitude, time zone, daylight savings time, longitude, and equation of time; with magnetic declination correction and spirit levels. http://www.horussundials.com (Photo credit: Wikipedia)

It changes officially at 2:00 AM on Sunday, Eastern Time, but officials recommend you reset your clocks before going to bed on Saturday night.

An easy way to remember how to reset your clocks is with the saying, “Spring ahead, Fall back.”

That is, reset your clocks an hour ahead in the Spring and an hour behind in the  Fall.

In the spring, if your clock is set at 9 AM, change it to 10 AM.

In the Fall, if your clock is set to 9 AM, reset it to 8 AM.

Arizona and Hawaii do not observe Daylight Savings Time, so they do not change their clocks.

What Are Clock Genes?

Sunlight resets our biological clock daily.

Otherwise, it would range from 22 to 28 hours, which scientists speculate gave us an advantage in looking for food when there was less competition.

Human clock genes, the genes that run our internal biological clocks, were discovered in 2001.

Internal biological clocks have ways to reset with feedback from the environment, such as light or temperature, have chemical systems that regulate sleep/wake patterns, and clock genes that help regulate genes throughout the body

Resetting your internal biological clock, as with jet lag or changing out of daylight savings time, can be aided by living by the new hours, that is, staying up later or getting up earlier to resynchronize with sunlight.

What Is a Food Clock?

One recent study suggested that we also have a food clock.

Not eating for 12-16 hours before we want to be awake will reset our food clock.

If we were flying to Tokyo, for instance, not eating on the plane, but eating as soon as we landed, should reset our internal biological clock because of our food clock.

To adjust to the end of Daylight Savings Time 2012, we should eat an hour earlier the night before and wake up ready for breakfast.

And, don’t forget to change the batteries in your smoke alarm!

How old were your grandchildren when they asked why we have Daylight Savings Time?

Have you ever missed something important because you didn’t change your clocks?

Do you have any special tricks for adjusting your biological clock?

To you and staying in synch with your grandchildren.


Carol Covin, Granny-Guru

Author, “Who Gets to Name Grandma? The Wisdom of Mothers and Grandmothers

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