Philadelphia, Pennsylvania, United States Daylight Saving Time starts When local standard time is about to reach Sunday, March 14, 2010 at 2:00:00 AM clocks are turned forward 1 hour to Sunday, March 14, 2010 at 3:00:00 AM local daylight time instead
Background info: Clocks Fall Back in USA and Canada on November 1
Seconds before and after the change:Local time DST? UTC offset Zone name Sunday, March 14, 2010 at 1:59:57 AM No -5 hours EST Sunday, March 14, 2010 at 1:59:58 AM No -5 hours EST Sunday, March 14, 2010 at 1:59:59 AM No -5 hours EST Sunday, March 14, 2010 at 3:00:00 AM 1 hour -4 hours EDT Sunday, March 14, 2010 at 3:00:01 AM 1 hour -4 hours EDT Sunday, March 14, 2010 at 3:00:02 AM 1 hour -4 hours EDT
Please note that dates might change in the future
Daylight Saving Time ends When local daylight time is about to reach Sunday, November 7, 2010 at 2:00:00 AM clocks are turned backward 1 hour to Sunday, November 7, 2010 at 1:00:00 AM local standard time instead
Background info: Clocks Fall Back in USA and Canada on November 1
Seconds before and after the change:Local time DST? UTC offset Zone name Sunday, November 7, 2010 at 1:59:57 AM 1 hour -4 hours EDT Sunday, November 7, 2010 at 1:59:58 AM 1 hour -4 hours EDT Sunday, November 7, 2010 at 1:59:59 AM 1 hour -4 hours EDT Sunday, November 7, 2010 at 1:00:00 AM No -5 hours EST Sunday, November 7, 2010 at 1:00:01 AM No -5 hours EST Sunday, November 7, 2010 at 1:00:02 AM No -5 hours EST
Please note that dates might change in the future
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