RCW 1.20.050: Standard time—Daylight saving time. (Contingent repeal.)

No county, city or other political subdivision of this state shall adopt any provision for the observance of daylight saving time, or any time other than standard, except pursuant to a gubernatorial proclamation declaring an emergency during a period of national war and authorizing such adoption, or unless other than standard time is established on a national basis: PROVIDED, That this section shall not apply to orders made by federal authorities in a local area entirely under federal control.