Best overlap: 5:30 PM to 6:30 PM in Kolkata is 8:00 AM to 9:00 AM in Atlanta.
The sweet spot is 5:30 PM to 6:30 PM Kolkata time, matching 8:00 AM to 9:00 AM in Atlanta. Just 1 hour of shared hours means there's little margin — set 5:30 PM in Kolkata (8:00 AM in Atlanta) and start promptly. Because only Atlanta changes its clocks, the overlap above isn't fixed; expect a one-hour shift when Atlanta enters or leaves daylight saving.
| 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 | ||||||||||||||||||||||||
Atlanta America/New York |
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. -