Istanbul, Turkey Colombo, Sri Lanka

Istanbul is in the +03 timezone (UTC+3) and Colombo is in the +0530 timezone (UTC+5:30). The time difference between them is 2h 30m.

Use the timeline above to find overlapping business hours between Istanbul and Colombo. The "Best time to meet" card highlights the window where both cities are within working hours (9 AM – 6 PM local time).

Neither Istanbul nor Colombo observes Daylight Saving Time, so the time difference remains constant throughout the year.

Click the pencil icon next to the Istanbul clock and type any time. The Colombo clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.