Does All of Washington State Have the Same Time?
Yes. All 39 Washington counties use Pacific Time. The counties are Adams, Asotin, Benton, Chelan, Clallam, Clark, Columbia, Cowlitz, Douglas, Ferry, Franklin, Garfield, Grant, Grays Harbor, Island, Jefferson, King, Kitsap, Kittitas, Klickitat, Lewis, Lincoln, Mason, Okanogan, Pacific, Pend Oreille, Pierce, San Juan, Skagit, Skamania, Snohomish, Spokane, Stevens, Thurston, Wahkiakum, Walla Walla, Whatcom, Whitman and Yakima.
The state's geography can make this less obvious. The Cascade Range divides western and eastern Washington climatically and culturally, but not legally by time zone. Seattle and Spokane are separated by the Cascades and hundreds of miles, yet their official clocks always match under current rules.
39 countiesEvery Washington county follows the same official Pacific Time rules.
Seattle = SpokaneWestern and eastern Washington share one statewide clock.
No in-state zone lineYou never change official time zones simply by traveling within Washington State.
Washington, British Columbia & the 2026 Pacific-Time Split
For decades, most travelers between Washington State and neighboring British Columbia could treat the border as one shared Pacific clock. That changes seasonally beginning November 1, 2026. British Columbia made its March 8, 2026 clock advance its final seasonal change and adopted year-round UTC−07.
Washington State still follows the seasonal U.S. schedule. So from March 8 through October 31, 2026, Washington's PDT and most of British Columbia both use UTC−07. On November 1, 2026, Washington is scheduled to fall back to PST at UTC−08 while British Columbia stays at UTC−07. During Washington's standard-time season, British Columbia will therefore be one hour ahead of Washington unless Washington or federal law changes.
Is Washington State Ending Daylight Saving Time?
No change is in force as of August 20, 2026. Current RCW 1.20.051 still directs Washington to advance the clock on the second Sunday in March and return to Pacific Standard Time on the first Sunday in November. At the same time, RCW 1.20.052 records the Legislature's 2019 intent to adopt permanent daylight saving time if Congress authorizes states to do so, and RCW 1.20.055 contains the contingent year-round Pacific Daylight Time rule.
More recent proposals moved in the opposite direction. SB 5001 proposed year-round Pacific Standard Time and was reintroduced in the 2026 session without becoming law. HB 2119, prefiled for the 2026 session, likewise proposed permanent standard time and was referred to the House State Government & Tribal Relations Committee. Neither measure replaced Washington's current PST/PDT schedule.