What is the curfew times in Washington?

Curfew times vary by city. An example is Tacoma, Beginning January 1, 1995 the Tacoma City Council enacted a juvenile curfew law that prohibits youth under the age of 18 years from being out in public between the hours of midnight to 6:00 a.m. The City Council approved continuation of the juvenile curfew law in 1997, 1999 and 2003.

Ref: http://www.cityoftacoma.org/Page.aspx?hid=884