Istanbul, Turkey Hanoi, Vietnam
Compare time between Istanbul and Hanoi
Date
Time format
Istanbul, Turkey
4:42
PM
Friday, August 21, 2026
Hanoi, Vietnam
8:42
PM
Friday, August 21, 2026
Time Difference Timeline
See the time difference throughout the day
Day time
Night time
Time difference
4 hours
Best time to meet
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Quick facts
Istanbul time zone: +03 (UTC+3)
Hanoi time zone: +07 (UTC+7)
Distance: Istanbul → Hanoi
Frequently Asked Questions
Istanbul is in the +03 timezone (UTC+3) and Hanoi is in the +07 timezone (UTC+7). The time difference between them is 4 hours.
Use the timeline above to find overlapping business hours between Istanbul and Hanoi. 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 Hanoi 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 Hanoi clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.