… Administrative Office Hours … Administrative Office Hours Administrative Office Hours Foothill Transit’s Administrative Offices are located at: 100 South Vincent Avenue, Suite 200 West Covina, CA 91790 Regular office hours: Monday*–Friday 8:30am–5:30pm *The Foothill Transit Administrative Offices are closed every other Monday. The Administrative Offices are closed on the following … Presidents’ Day Memorial Day Independence Day Labor Day Veterans Day Thanksgiving Day and the Friday after Thanksgiving December 24th through January 1st …