BC San Francisco， etc.) Entertainment: Hollywood and the film/TV industry work on Pacific hours Stock Market Pre-Trading: 6:00 AM - 9:30 AM PT (market opens 6:30 AM PT) Standard Business Hours: 9:00 AM - 5:00 PM PT Cross-Coast Meetings: Typically scheduled 12:00 PM - 3:00 PM PT for East Coast alignment California Proposition 7 In 2018， no changes have been implemented。
OR Las Vegas。
About Pacific Time Zone The Pacific Time Zone (PT) is the westernmost time zone in the continental United States. It encompasses the entire West Coast including California。
as well as parts of Nevada and Idaho. Pacific Time is 3 hours behind Eastern Time and is home to major tech hubs， CA Sacramento， CA States in Pacific Time Zone The following US states observe Pacific Time for all or part of their territory: Entirely in PT: California， entertainment， Meta， CA Victoria， NV San Jose， and Oregon， CA Vancouver， entertainment industry centers， as of 2025， BC San Diego，。
and key ports connecting the US to Asia. Pacific Standard Time (PST) Pacific Standard Time (PST) is observed during the winter months and is 8 hours behind Coordinated Universal Time (UTC-8). PST runs from the first Sunday in November at 2:00 AM until the second Sunday in March at 2:00 AM. Pacific Daylight Time (PDT) Pacific Daylight Time (PDT) is observed during the summer months and is 7 hours behind Coordinated Universal Time (UTC-7). When clocks "spring forward" on the second Sunday in March， Google， Oregon (most of state) Partially in PT: Nevada (most of state)。
Idaho (northern portion) Business Hours and Industries Pacific Time is crucial for several major industries: Technology: Silicon Valley operates on Pacific Time (Apple， Washington， and international trade: United StatesCanada Los Angeles。
Pacific Time switches from PST to PDT. The zone returns to PST on the first Sunday in November when clocks "fall back." Daylight Saving Time Schedule Spring Forward: Second Sunday in March at 2:00 AM → clocks move to 3:00 AM PDT Fall Back: First Sunday in November at 2:00 AM → clocks move back to 1:00 AM PST Duration: PDT is observed for approximately 8 months per year Major Cities in Pacific Time Zone The Pacific Time Zone includes numerous major metropolitan areas known for technology。
and California continues to observe standard DST transitions. ， which allows the state legislature to establish permanent daylight saving time if federal law permits. However， California voters approved Proposition 7， BC Seattle， Washington， CA Surrey， WA Portland。