Ottawa is 1 hour ahead of Mexico City
Best overlap: 8:00 AM to 5:00 PM in Mexico City is 9:00 AM to 6:00 PM in Ottawa.
Schedule calls for 8:00 AM to 5:00 PM in Mexico City — your colleagues in Ottawa will be online from 9:00 AM to 6:00 PM. Despite the 1-hour difference, a 9-hour overlap keeps things simple and gives both teams breathing room. Keep an eye on the calendar — Ottawa observes daylight saving and Mexico City doesn't, which nudges this window by an hour twice a year.