Time difference between Seoul and Hanoi

Hanoi is 2 hours behind Seoul.

South Korea · Korean Standard Time

9:47 AM

Thursday, November 12, 2026

Vietnam · Indochina Time

7:47 AM

Thursday, November 12, 2026

Seoul 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 Seoul and Hanoi?

Hanoi is 2 hours behind Seoul. Seoul is on UTC+9 and Hanoi is on UTC+7.

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

When it is 9:00 AM in Seoul, it is 7:00 AM in Hanoi.

When is the best time to call Hanoi from Seoul?

The best time to call or meet is 11:00 AM–6:00 PM in Seoul (9:00 AM–4:00 PM in Hanoi), when both places are in normal office hours.

Which days are working days in both Seoul and Hanoi?

Both Seoul and Hanoi usually work Monday to Friday.

Does the time difference between Seoul and Hanoi change?

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

Seoul is 2 hours ahead of Hanoi. More: time in Seoul · time in Hanoi