CIBC Branches will be closed Tuesday July 1st for Canada Day. CIBC Branches in Nunavut, will be closed Wednesday July 9 for Nunavut Day. 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. will be effective the next business day.