Anchorage is 4 hours behind Ottawa
Best overlap: 12:00 PM to 6:00 PM in Ottawa is 8:00 AM to 2:00 PM in Anchorage.
Your shared working hours run 12:00 PM to 6:00 PM in Ottawa (8:00 AM to 2:00 PM in Anchorage). Anchorage is 4 hours behind Ottawa, and with 6 hours of overlap you can even run back-to-back calls without stepping outside business hours.