Ottawa is 10.5 hours behind Mumbai

There is no standard 8-to-6 overlap. Someone joins early or late.

Ottawa is 10.5 hours behind Mumbai, which is far enough that a normal 9-to-5 in one city never reaches the other's working hours. One practical option: Ottawa dials in early while it's still late afternoon or evening in Mumbai. Remember that Ottawa shifts for daylight saving and Mumbai doesn't, so recalculate the overlap after each clock change.

Time in Mumbai/Time in Ottawa