Pacific Time Zone Navigates Biannual Daylight Saving Time Transitions with Significant Impact on Daily Life
The Pacific Time Zone, encompassing a significant portion of the U.S. and Canada, observes a seasonal clock system that alternates between Pacific Standard Time (PST) and Pacific Daylight Time (PDT). PST is 8 hours behind Coordinated Universal Time (UTC-8) and is in effect during late fall and winter. PDT is 7 hours behind UTC-7 and is observed during spring and summer. The transition to PDT, known as "spring forward," occurs at 2:00 a.m. local time, skipping the hour between 2:00 a.m. and 3:00 a.m., effectively causing a loss of an hour of sleep. Conversely, the "fall back" transition in November sets clocks back one hour at 2:00 a.m., resulting in the hour between 1:00 a.m. and 2:00 a.m. occurring twice, providing an extra hour of sleep. These transitions are governed by national and international standards, including the U.S. Energy Policy Act of 2005. 
