Time difference between Istanbul and Hanoi

Hanoi is 4 hours ahead of Istanbul.

Türkiye · Türkiye Standard Time

3:48 AM

Thursday, November 12, 2026

Vietnam · Indochina Time

7:48 AM

Thursday, November 12, 2026

Istanbul to Hanoi time converter

Green rows are office hours in both places; light green rows are when both are awake.

What is the time difference between Istanbul and Hanoi?

Hanoi is 4 hours ahead of Istanbul. Istanbul is on UTC+3 and Hanoi is on UTC+7.

What time is it in Hanoi when it is 9 AM in Istanbul?

When it is 9:00 AM in Istanbul, it is 1:00 PM in Hanoi.

When is the best time to call Hanoi from Istanbul?

The best time to call or meet is 9:00 AM–2:00 PM in Istanbul (1:00 PM–6:00 PM in Hanoi), when both places are in normal office hours.

Which days are working days in both Istanbul and Hanoi?

Both Istanbul and Hanoi usually work Monday to Friday.

Does the time difference between Istanbul and Hanoi change?

No. Neither Istanbul nor Hanoi changes its clocks in a way that affects the difference, so it stays the same all year.

Istanbul is 4 hours behind Hanoi. More: time in Istanbul · time in Hanoi