There are no overlapping standard business hours (9am - 5pm). Use the interactive converter above to visually compare hours side by side.

Tehran

IRST (GMT+3:30)

No Daylight Saving Time

Toronto

EST (GMT-5)

EDT starts on Mar 14, 2027

What is the best time to schedule a meeting between Tehran and Toronto?

There are no overlapping business hours. Consider early morning or late evening meetings, or use the interactive converter on this page to find a workable time slot.

How many hours apart are Tehran and Toronto?

Toronto is 8.5 hours behind Tehran.

Does the overlap change with daylight saving time?

Toronto observes daylight saving time (EDT starts on Mar 14, 2027) but Tehran does not, so the overlap may shift by an hour seasonally. The interactive converter on this page always reflects the current offset, even across daylight saving transition.