Best overlap: 8:00 AM to 4:00 PM in Cairo is 10:30 AM to 6:30 PM in Kolkata.
Target 8:00 AM to 4:00 PM in Cairo, which lands at 10:30 AM to 6:30 PM for the Kolkata side. This is one of the easier pairings: 8 hours of shared time means flexible, low-stress scheduling. Seasonal note: Cairo uses daylight saving and Kolkata doesn't, so double-check the times in your own months — they can move 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cairo Africa/Cairo | ||||||||||||||||||||||||
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. -