Customer Support Hours Kryptonite Support June 22, 2023 20:48 Updated Our Customer Support staff is available Monday through Friday, 8:30 AM to 4:30 PM Eastern Time. Related articles Can I call the Customer Support Team? What is the address for Kryptonite? I lost my keys/combination and my bike is currently locked up How can I fax documents to you? Does my lock come with a warranty? Comments 0 comments Article is closed for comments.