This decision is rooted in the state’s desire to avoid the extreme heat of extended daylight hours during summer. Arizona, with the exception of the Navajo Nation, remains on Mountain Standard Time year-round.
Set Clocks Night Before DST to Ease Morning Transition
This legislation aimed to reduce energy consumption and create more consistent timekeeping. The division between standard and daylight saving time is strictly regulated by federal law, ensuring consistency across state and provincial borders.
This pattern repeats annually, with the start date falling on the second Sunday of March each year. Mountain Time begins on the second Sunday in March when clocks spring forward from standard time to daylight saving time.
Set Clocks Night Before DST to Prepare for Mountain Time Start
Setting clocks forward the night before minimizes morning confusion. Clocks were advanced one hour to 3:00 AM, effectively losing an hour of sleep but gaining evening light.
More About When does mountain time start
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