Best overlap: 8:00 AM to 9:00 AM in New York is 5:30 PM to 6:30 PM in Kolkata.
Shoot for 8:00 AM to 9:00 AM in New York; your Kolkata colleagues will see that as 5:30 PM to 6:30 PM. With only around 1 hour of shared time, be precise — book 8:00 AM in New York (5:30 PM in Kolkata) and you'll catch both teams. Note that New York follows daylight saving while Kolkata stays put, so the times above drift by an hour seasonally.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
New York America/New York | ||||||||||||||||||||||||
Kolkata Asia/Kolkata |
A complete guide to time zones in 2025, from UTC and GMT differences to Daylight Saving Time changes, IANA database rules, abbreviation pitfalls, and developer best practices for handling global time. -
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