Seattle

United States • Pacific Time

Time Zone

Seattle uses Pacific Time (PST / PDT), currently running at UTC−8 (winter) / UTC−7 (summer). Clocks spring forward one hour in mid-March and fall back in early November.

Business & Commerce

Seattle, Washington operates on Pacific Time (PT) — Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer — on the same schedule as Los Angeles and Vancouver. Seattle is the headquarters city for Amazon and Boeing, and nearby Redmond is home to Microsoft's global headquarters, giving Pacific Time significant weight in global technology, e-commerce, and aerospace industries. Pacific Time runs three hours behind New York and eight hours behind London in winter, meaning Seattle's 9:00 AM start corresponds to noon in New York and 5:00 PM in London. Seattle's deepwater port is one of the busiest on the U.S. West Coast for container shipping to and from Asia, and the city's Pacific Rim geography creates direct daily trade coordination requirements with China, Japan, South Korea, and Canada.