Located in the Mountain (GMT -07:00) time zone. Area code 385 serves the state of Utah. This area code was assigned on May 3rd, 2000. On March 29th, 2009 it went into service. 385 is a General Purpose Code. 385 service area does overlap with 801 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.