Posted by U.S. Clean Labs on May 24, 2016 | Leave a Comment Beginning on May 23, 2016 Janzen Wahl extended operating hours from 8am-5pm to 7am-5pm (Arizona time). This move was done to better serve our customers (particularly those in the eastern time zone). Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Save my name, email, and website in this browser for the next time I comment.