On Saturday night the United States will conduct the biannual ritual of changing its clocks as the nation returns to Standard Time in another sign of the changing of seasons.
Daylight Saving Time comes to an end at 2:00 a.m. Sunday morning and clocks will be moved back one hour in most locations in the United States.
Arizona and Hawaii are the only states that do not observe Daylight Saving Time and remain on Standard Time year round. The U.S. territories of Puerto Rico, American Samoa, Guam, Northern Mariana Islands, and the United States Virgin Islands also do not observe the event.
The time change can be met with resistance and consternation as Americans struggle to adjust their internal clocks. Others however like the ‘fall back’ to Standard Time as it allows for an extra hour of sleep.
The switch will be most noticeable in the mornings and evenings and the change in sunrise and sunset times.
On Saturday, the sun rises in Denver at 7:30 a.m. and sets at 5:56 p.m. Following the return to Standard Time, Sunday’s sunrise will occur at 6:31 a.m. and sunset at 4:55 p.m.
For many, the most notable effect will be in the evenings when it will be dark when they return home from work. Outdoor activities are curtailed as a result.
The mandated beginning and end of Daylight Saving Time has changed in the United States over the years.
The most recent schedule was set by the Energy Policy Act of 2005 and took effect in 2007. We now ‘spring forward’ to begin Daylight Saving Time on the second Sunday in March and ‘fall back’ with the return to Standard Time on the first Sunday in November.
It won’t be all that long before Daylight Saving Time returns next year. On March 9, 2014 we will ‘spring forward.’
Daylight Saving Time Schedule
Start: March 10
End: November 3
Start: March 9
End: November 2
Start: March 8
End : November 1
Start: March 13
End : November 6
Start: March 12
End November 5