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Kolkata is 10.5 hours ahead of Ottawa

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

Ottawa and Kolkata are 10.5 hours apart, and that gap is wide enough that their normal 9-to-5 workdays never quite touch. If you meet regularly, fix one off-hours slot and rotate it between Ottawa and Kolkata so the burden doesn't fall on one team. Keep an eye on the calendar — Ottawa observes daylight saving and Kolkata doesn't, which nudges this window by an hour twice a year.

Time in Ottawa/Time in Kolkata

Local time
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
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2pm
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4pm
5pm
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9pm
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11pm
Ottawa
America/Toronto
Kolkata
Asia/Kolkata

Frequently Asked Questions

What is the time difference between Kolkata and Ottawa?
Ottawa is 10.5 hours behind Kolkata.
What are the best overlapping working hours between Kolkata and Ottawa?
Unfortunately, there are no standard overlapping working hours (8 AM to 6 PM) between Kolkata and Ottawa. You will likely need to schedule meetings outside of regular office hours.
How many hours overlap between Kolkata and Ottawa during a typical workday?
Unfortunately, there are no overlapping work hours. Someone will usually need to join earlier or later than a normal workday.
Does Daylight Saving Time affect the time difference between Kolkata and Ottawa?
Ottawa observes Daylight Saving Time, but Kolkata does not. This means the time difference between the two locations will change during the year.

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