Understanding Daylight Saving Time Changes and Their Impact
Daylight Saving Time (DST) involves adjusting clocks to shift an hour of sunlight from morning to evening, impacting sunrise and sunset times. This change aims to maximize daylight during working hours and conserve energy. Explore how the transition from Standard Time to DST affects sunrise and sunset, and learn why this adjustment is made to balance sunlight distribution throughout the year.
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Presentation Transcript
Why DO We Fool with the Clocks??? Dr. Aileen O Donoghue St. Lawrence University Physics Department
Standard to Daylight Time 2024 In Canton we are currently in EST EST = Eastern Standard Time 2 am on Sunday, March 10 change to EDT EDT = Eastern Daylight Time Daylight Time Begins on Daylight Time Begins on March 10, 2024 March 10, 2024 Spring Ahead Spring Ahead
Standard Time Day lengths in Canton Longest = 15h37m23s, Shortest = 8h52m26s Natural sunrise & sunset varies: Sunrise from 4:13 am to 7:36 am Sunrise at 4:13 am? Who wants that?? Times of sunrise & sunset in Canton on Eastern Standard Time (EST). Sunset from 4:22 pm to 7:52 pm
Daylight Saving Time Shifts an hour of sunlight to evening Industrial workday: 8 am 5 pm Shifts daylight from before work to after work Was thought to save energy (more light after work) Sunrise from 4:13 am to 8:36 am Sunrise at 8:36 am? Who wants that?? Times of sunrise & sunset in Canton on Eastern Daylight Time (EST). Sunset from 5:22 pm to 8:52 pm
Why Change? All-year EST or EDT has problems EST: Summer Sun rises at 4:13 am EDT: Winter Sunrise at 8:36 am Keep sunrise from being really early or late: Switch!! Narrows range of sunrise Sunrise from 5:13 am to 7:36 am EDT EST EST Times of sunrise & sunset in Canton for EST and EDT. Sunset from 4:22 pm to 8:52 pm Widens range of sunset
Daylight to Standard Time 2024 2 am on Sunday, March 10 begin EDT EDT = Eastern Daylight Time 2 am on Sunday, November 3 begin EST (First Sunday after Halloween) EST = Eastern Standard Time Standard Time Begins on Standard Time Begins on November 3, 2021 November 3, 2021 Fall Back Fall Back
