Why do we change our clocks twice a year?


The day (or days) after we switch back to Daylight Saving Time has many people feeling groggy and tired.

Setting our clocks forward an hour in the spring (also known as “spring forward”) cuts our sleep by an hour.

But, how did we start setting our clocks to different times during different parts of the year? Some people point their fingers at Founding Father Benjamin Franklin. He first floated the idea back in 1784. He argued people would save money on candles if they just got up with the sun and went to bed when it went down, according to National Geographic. 

That’s not where the tradition started. It actually wasn’t a thing in the United States for a while after that–1918 to be exact.

Changing clocks to “save daylight” started in Germany during World War I. According to National Geographic, the German government was trying to find ways to conserve energy.

Now, the idea of changing the clocks back and forth had been brought up by a few other people before this, but Germany was the first country that went for it.

It wasn’t too long after that England and the other nations that fought in WWI got on board.

That brings us back to the U.S. where on March 19, 1918, the Standard Time Act was signed into law. (The law also divided the U.S. into five time zones.)

This new law did not last long. It was only around for seven months before it was repealed.

Since then, there have been times where it’s been brought back and then repealed again.

In 1942 it was known as “War Time” when then-President Franklin D. Roosevelt brought it back during World War II. “War Time” lasted until 1945.

Then in 1966, the Uniform Time Act of 1966 made it so there would be yearly time changes. It established that Daylight Saving Time would start on the last Sunday of April. It would then end on the last Sunday in October.

From 1987 through 2006, Daylight Saving Time would start on the first weekend of April and end on the last weekend of October. However, in 2007 the start and end of Daylight Saving changed once again.