Best overlap: 11:30 AM to 6:30 PM in Kolkata is 8:00 AM to 3:00 PM in Paris.
11:30 AM to 6:30 PM in Kolkata is when Paris is also working, at 8:00 AM to 3:00 PM their time. The 3.5-hour gap barely gets in the way — you've got 7 hours of overlap, so pick whatever time fits the agenda. Just remember Paris changes its clocks for daylight saving and Kolkata doesn't, so confirm the overlap whenever the seasons turn.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Kolkata Asia/Kolkata | ||||||||||||||||||||||||
Paris Europe/Paris |
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