The CRA's contact centres for its individual and business tax enquiries lines were open Monday to Friday from 8:00 a.m. to 8:00 p.m. and Saturday from 9:00 a.m. to 5:00 p.m., local time.

For example, if someone had moved from Vancouver, BC, to St. John's, NL, but had kept their Vancouver phone number, they would not have been able to reach a CRA contact centre if they called from St.