Science•8 min read
The Daylight Saving Time Policy Tracker: Global Map & Economic Analysis
Over 60% of the global population now lives in regions with permanent standard time. An interactive investigation into state legislation, energy impacts, and the Sunshine Protection Act.
TimeNumbers Research Lab(Public Policy & Chronometry Division)
Published Mar 10, 2026
Fact-checked & Chronometry Verified
Twice every year, hundreds of millions of people in North America and Europe alter their clocks. Yet global data shows a seismic shift toward permanent standard time.
Worldwide Adoption Statistics
State Legislation and the Sunshine Protection Act
While 19 US state legislatures have passed bills favoring year-round Daylight Saving Time, federal Uniform Time Act amendments remain pending congressional approval.
View our state-by-state reference guide: [Does Arizona Change Time?](/daylight-saving-time/arizona) and [Full List of Non-Observing Countries](/daylight-saving-time/non-observing-countries).
Topic Keywords:#daylight saving time study#sunshine protection act statistics#countries without daylight saving#DST health and cardiac impacts
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