Time difference between Hanoi and Seoul

Seoul is 2 hours ahead of Hanoi.

Vietnam · Indochina Time

7:47 AM

Thursday, November 12, 2026

South Korea · Korean Standard Time

9:47 AM

Thursday, November 12, 2026

Hanoi to Seoul time converter

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

What is the time difference between Hanoi and Seoul?

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

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

When it is 9:00 AM in Hanoi, it is 11:00 AM in Seoul.

When is the best time to call Seoul from Hanoi?

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

Which days are working days in both Hanoi and Seoul?

Both Hanoi and Seoul usually work Monday to Friday.

Does the time difference between Hanoi and Seoul change?

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

Hanoi is 2 hours behind Seoul. More: time in Hanoi · time in Seoul