Ask your students what they think about daylight savings time. A change of clocks and a change in the times of when the sun is up is most common, but most people do not fully understand daylight savings time. It was originally created to save energy, moving the times people were awake to the times when the sun was up.
But until the 1950s with the economic boom, as well as the further development of the Interstate system, and further travel of people, one could simply rely on local time. It didn’t matter what time it was in the next state over, if they followed daylight savings or not. It wasn’t until 1966 that the Federal Government stepped in and enacted a law requiring all of the United State to use Daylight Savings time.
This infographic shows how the time change works. It shows the average sunrise and sunset, as well as actual sunrise and sunset times, and how it changes when we change our clocks. Have your students imagine what it would be like without the time change. What would it be like without the time change. At what times would the sun go up and down. How would that change our lives?