CIBC Branches in Yukon will be closed Friday February 20 for Yukon Heritage Day. ATMs at most locations will be available throughout the holiday period. CIBC Online Banking, CIBC Mobile Banking and CIBC Telephone Banking are available 24 hours a day, 7 days a week. Please note: Transactions conducted on weekends and holidays or after 6 p.m. EST will be effective the next business day.