Toronto is 2 hours ahead of Calgary. Toronto uses Eastern Time (ET, UTC-5/-4) while Calgary uses Mountain Time (MT, UTC-7/-6). When it's 12:00 PM in Calgary, it's 2:00 PM in Toronto.
Both cities observe daylight saving time on the same schedule, so the 2-hour difference remains constant year-round.
Best calling time: 11:00 AM - 7:00 PM Toronto time. This corresponds to 9:00 AM - 5:00 PM in Calgary, covering standard Alberta business hours.
Toronto and Calgary are two of Canada's largest cities. Toronto is the financial capital and largest city, while Calgary is the energy industry capital in Alberta. The 2-hour time difference allows for overlapping business hours but requires some schedule coordination for cross-country meetings.