Daylight Saving Time ends at 2 a.m. Sunday, November 5, meaning Illinois residents should set their clocks back one hour before heading to bed Saturday evening.
The switch will move sunrise and sunset back an hour, giving residents an extra hour of sleep on Sunday morning and more light during the winter mornings—but darker afternoons until next spring when Illinoisans will “spring forward” on the second Sunday in March.
One thing to note, firefighters recommend getting into the practice of using Daylight Saving Time to change your smoke alarm batteries and test your smoke alarms. With almost 3,000 people in the United States losing their lives in a residential fire every year, changing the batteries and testing alarms is one of the most simple, most effective ways to reduce these tragic deaths and injuries. The National Fire Protection Association reports that 71 percent of smoke alarms that failed to operate had missing, disconnected or dead batteries.
Daylight saving time was first implemented as a way to conserve fuel during World War I, with the passage of the Standard Time Act of 1918. In 1966, the Uniform Time Act was signed into law, designating the first weekend of November as a time to “fall back” on hour, and the second Sunday in March as the time to move clocks forward an hour. States can opt out of daylight saving—it isn’t observed in most of Arizona or Hawaii—though it is practiced in almost 70 countries, most of those in North America and Europe.