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Why Most of the U.S. 'Springs Forward' for Daylight Saving Time
Báo Snopes Báo Snopes 241 ngày
Here's why daylight saving time exists
The Origins of Daylight Saving Time
Daylight Saving Time: Why Do We Set Our Clocks Forward in Spring?
The US is springing forward to daylight saving. For Navajo and Hopi tribes, it’s a time of confusion