Best overlap: 5:30 PM to 6:30 PM in Kolkata is 8:00 AM to 9:00 AM in New York.
Book within 5:30 PM to 6:30 PM Kolkata time (8:00 AM to 9:00 AM in New York) and both teams will be at work. Overlap is at a premium — roughly 1 hour — so claim 5:30 PM in Kolkata (8:00 AM in New York) for recurring calls and keep them on time. For part of the year the maths changes: New York observes daylight saving, Kolkata does not, shifting the overlap by an hour.
| 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 | ||||||||||||||||||||||||
New York America/New York |
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