Senate Bill 5001 amends Washington law to declare the state’s intent to reject adoption of daylight saving time and to remain on standard time year‑round. It amends RCW 1.20.050 to define “standard time for the state of Washington” as the time zone designated by the U.S. Department of Transportation under the federal Uniform Time Act (15 U.S.C. §§ 261 and 263), states the election to continue standard time, and prohibits counties, cities, code cities, and other political subdivisions from adopting daylight saving time or any time other than the designated standard time unless a different time is established nationally. The amendment also clarifies that federal time rules for common carriers and times required by federal law or orders are not affected. The bill also amends RCW 35A.21.190 to bar code cities from adopting observance of daylight saving time other than as authorized by RCW 1.20.050, repeals RCW 1.20.051 and specifies repeal of RCW 1.20.052 as listed in an amended uncodified repeal list in 2019 c 297 s 4. The act takes effect November 3, 2025. Section 3 (the RCW 35A.21.190 amendment) expires upon the occurrence of a contingency described in section 5, chapter 297, Laws of 2019, and Section 4 becomes effective upon that same contingency. Legally, this bill modifies existing law, creates a statewide procedural/regulatory prohibition on local adoption of daylight saving time, defines the state’s standard time by reference to federal designation, and repeals specified prior statutes. No criminal penalties or new crimes are described in the extracted text. The specific content of the 2019 contingency that triggers expiration or effectiveness of certain sections is not included in the provided facts, and the final 2025 chapter/session citation is not provided.

If this becomes law, Washington would stay on standard time all year and local governments would no longer be able to choose daylight saving time or any other local time unless the federal government makes a nationwide change. That means state, county, city, and code city officials lose the option to move clocks seasonally, residents and businesses would no longer plan for spring‑forward/fall‑back adjustments, and schedules that interact with federal rules or interstate carriers still must follow federal time rules. The act takes effect November 3, 2025. Some parts of the bill amend or repeal earlier state provisions and one amendment to code city law is set to expire or take effect only if a contingency in a 2019 law occurs; that contingency is not provided here, so timing and the permanence of those specific changes are unclear.