Toronto and New York share the same timezone year-round. When it's 12:00 PM in New York, it's also 12:00 PM in Toronto. Both cities observe DST on the same schedule.
Both cities use Eastern Time (EST/EDT, UTC-5/-4). Toronto is one of New York's closest major international cities, just over 500km away.
Any time works! Business hours are identical. The short 1.5-hour flight makes same-day business trips common between these financial centers.
Toronto is Canada's financial capital and North America's fourth-largest city. Many companies operate in both cities, and the NYSE has significant Canadian listings.