Numbers in the News: Daylight Saving Time

On March 14, people across the United States will set their clocks forward one hour. Check out some facts and figures about this yearly ritual.

March 15, 2021

238

The number of days each year, from March to November, that daylight saving time is in effect in much of the U.S.

2

The number of U.S. states that don't observe daylight saving time

1918

The year daylight saving time was introduced in the U.S. to provide an extra hour of sunlight in the evenings

71 PERCENT

The percentage of Americans who would prefer to get rid of daylight saving time*

^{_{*based on a survey of 1075 people}}

THINK ABOUT IT: Many people find that daylight saving time disrupts sleep, which affects work and focus. Do you think we should keep daylight saving time? Why or why not?

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Do you think we should keep daylight saving time?

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Teachers: poll your class, then type the total number of answers in the boxes and click “Cast Your Vote.”

^{_{SOURCES: NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, TIME AND DATE, AP-NORC CENTER FOR PUBLIC AFFAIRS RESEARCH}}

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