Best overlap: 11:30 AM to 6:30 PM in Kolkata is 8:00 AM to 3:00 PM in Copenhagen.
Keep meetings inside 11:30 AM to 6:30 PM in Kolkata — that maps to 8:00 AM to 3:00 PM in Copenhagen. Because you share 7 hours of the workday, there's no need to compromise; book the time that suits the meeting, not the map. These times hold for most of the year, but Copenhagen's daylight saving (which Kolkata doesn't use) shifts them by an hour twice annually.
| 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 | ||||||||||||||||||||||||
Copenhagen Europe/Copenhagen |
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. -