The Very Simple Reason Why IIIinois Doesn’t Do Daylight Saving Time (Along with THIS State)

Illinois does observe Daylight Saving Time (DST). The confusion might arise from the fact that there are only two states in the U.S. that do not observe DST: Hawaii and Arizona (except for the Navajo Nation in Arizona).

Why Illinois Observes DST

• Legal Requirement: Illinois follows the federal guidelines set by the Uniform Time Act of 1966, which mandates DST for states that choose to observe it. Illinois has not opted out of this practice.
• Proposed Changes: There have been proposals to make DST permanent in Illinois, but none have been passed into law yet.

States That Do Not Observe DST

• Hawaii: Located near the equator, Hawaii does not need to adjust its clocks to maximize daylight hours.
• Arizona: Most of Arizona does not observe DST, citing the hot desert climate and the belief that the energy-saving benefits are minimal.

Illinois does observe Daylight Saving Time, and it is not one of the states that opt out of this practice. SOURCES

1. https://www.nbcchicago.com/news/local/daylight-saving-time-returns-this-weekend-how-will-it-change-sunset-sunrise-times/3690225/
2. https://www.yahoo.com/news/illinois-spring-forward-daylight-saving-203628958.html
3. https://www.newsweek.com/illinois-permanent-daylight-savings-time-2026482
4. https://economictimes.com/news/international/us/daylight-saving-time-2025-start-date-time-change-impacts-usa/articleshow/118763323.cms