Time in Seattle – Current Time, Zone and DST Guide

As of April 4, 2026, the precise local time in Seattle, Washington, registers as 2:12 AM under Pacific Daylight Time. This places the city seven hours behind Coordinated Universal Time, a direct result of the seasonal clock adjustment that advanced time by one hour on March 8.

Seattle maintains its temporal alignment within the Pacific Time Zone, sharing synchronized hours with Los Angeles, Portland, and Vancouver. This coastal coordination creates a distinct boundary from the Eastern Time Zone, where financial markets and When Is Diwali 2025 – Date, Schedule and Muhurat Timings operate on fundamentally different rhythms.

For the technology sector dominating Seattle’s economy, these distinctions determine global conference calls, server maintenance windows, and trading deadlines. Accurate awareness of these offsets prevents costly scheduling conflicts with international partners.

What Time Is It in Seattle Right Now?

• Seattle utilizes the IANA identifier America/Los_Angeles for digital systems.
• The city observes a seven-hour difference from UTC during daylight saving months.
• Winter months revert to an eight-hour lag behind universal coordinated time.
• Geographic coordinates situate at 47°37′ North, 122°21′ West.
• Official synchronization relies on NIST atomic clock standards.
• Washington State mandates uniform DST observance across all counties.

What Time Zone Is Seattle In?

Seattle falls within the Pacific Time Zone, one of four continental U.S. zones established by federal transportation legislation. This classification groups the city with the western seaboard states, distinct from Mountain, Central, and Eastern zones.

Is Seattle in PST or PDT?

The designation alternates seasonally. From early November through early March, Seattle observes Pacific Standard Time (PST) at UTC-8. The transition to Pacific Daylight Time (PDT) occurs in March, shifting the offset to UTC-7 until November returns. Wikipedia’s Pacific Time entry documents this biannual pattern.

Geographic Scope

The Pacific Time Zone extends from the Washington coast through Oregon and California, reaching into Idaho and Nevada. Seattle sits near the northwestern edge of this zone, sharing temporal unity with other Washington municipalities regardless of longitude variations.

Does Seattle Observe Daylight Saving Time?

Washington State adheres strictly to federal Daylight Saving Time protocols. The Uniform Time Act governs these transitions, requiring statewide compliance without exception for Seattle.

When Does DST Start in Seattle?

The spring transition occurs on the second Sunday in March at 2:00 AM local time. In 2026, this shift happened on March 8, advancing clocks one hour. Regional tourism sites track these changes for visitor coordination.

When Does DST End in Seattle?

The fall reversal takes place on the first Sunday in November, also at 2:00 AM. November 1, 2026, marks the return to Standard Time. Local timekeeping resources confirm this autumnal adjustment.

Legal Basis

Federal legislation mandates these specific dates, though states may exempt themselves via statute. Washington maintains full observance, ensuring Seattle follows identical patterns to Los Angeles and Portland.

Time Differences: Seattle vs. Major Cities

Seattle’s offset creates significant coordination challenges with major global business centers. The gap fluctuates seasonally as other regions adjust their own daylight saving schedules.

Seattle vs. New York

During winter months, Seattle trails New York by two hours. When both cities enter daylight saving periods, this expands to three hours due to earlier Eastern sunrise calculations. World time calculators verify these shifting differentials.

Seattle vs. London

The transatlantic gap measures eight hours in winter, narrowing to seven during British Summer Time. London shifts its clocks in March and October, slightly offset from U.S. transition dates, creating brief week-long discrepancies.

When Does DST Start and End in Seattle?

The federal schedule fixes these dates through 2029, creating predictable patterns for long-term planning.

1. 2026: March 8 (start), November 1 (end)
2. 2027: March 14 (start), November 7 (end)
3. 2028: March 12 (start), November 5 (end)
4. 2029: March 11 (start), November 4 (end)

What Is Certain vs. Uncertain About Seattle Time?

Why Does Seattle Time Matter?

Seattle hosts headquarters for global technology corporations including Amazon and Microsoft. These entities operate continuous cloud infrastructure requiring precise temporal coordination across distributed data centers. The city’s Pacific Time alignment determines maintenance windows affecting global services.

Aviation schedules at Seattle-Tacoma International Airport depend on accurate local time for gate assignments and crew rotation. Passengers connecting through international hubs must calculate layover durations accounting for the three-hour gap with Eastern destinations.

Financial trading hours further emphasize these distinctions. Stock exchanges open at 6:30 AM Seattle time, creating early morning demands for West Coast traders coordinating with New York markets.

Official Timekeeping for Seattle

Seattle’s official time aligns with atomic standards maintained by the National Institute of Standards and Technology (NIST), accessible through time.gov for public verification.

— National Institute of Standards and Technology

The U.S. Naval Observatory serves as the master source for Coordinated Universal Time and domestic zone boundaries, including DST regulatory schedules.

— U.S. Naval Observatory

Key Takeaways on Seattle Time

Seattle currently operates under Pacific Daylight Time (UTC-7) until November 1, 2026, when it reverts to Pacific Standard Time (UTC-8). The city maintains a two to three-hour delay behind Eastern Time depending on seasonal adjustments, with all transitions governed by federal Uniform Time Act mandates. For travelers planning around MacBook Pro M5 – Release Date Specs and Prices launches, verifying current PDT/PST status remains essential before scheduling cross-country coordination.

Frequently Asked Questions