Istanbul, Turkey Honolulu, United States

Istanbul is in the +03 timezone (UTC+3) and Honolulu is in the HST timezone (UTC-10). The time difference between them is 13 hours.

Use the timeline above to find overlapping business hours between Istanbul and Honolulu. 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 Honolulu 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 Honolulu clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.