South Korea
Vietnam
Seoul to Hanoi Time Difference
Hanoi is 2 hours behind Seoul
Seoul vs Hanoi — At a Glance
Seoul to Hanoi — Hour-by-Hour
About Seoul and Hanoi
Seoul (population: 9.7M) is known for Samsung and LG headquarters, K-pop culture, Gangnam, and rapid tech innovation. Hanoi (population: 8.1M) is known for Vietnam's capital, Ho Chi Minh Mausoleum, Old Quarter, and pho cuisine.
Business Hours Overlap
Hanoi is a national capital, so official government hours (typically 9 AM–5 PM) are the primary window for diplomatic and administrative communication with Seoul.
Calling Between Cities
Calling between Seoul (+82) and Hanoi (+84) is convenient — the time difference is small enough that you're unlikely to disturb anyone during normal waking hours.
Currency
Seoul uses KRW while Hanoi uses VND. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Seoul primarily speaks Korean, while Hanoi speaks Vietnamese. For business communication, English is commonly used as a bridge language in international settings.
Use our world clock tool to compare Seoul and Hanoi visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Seoul and Hanoi?
Hanoi, Vietnam is 2 hours behind Seoul, South Korea. Seoul is in the Asia/Seoul timezone (UTC+9) and Hanoi is in the Asia/Bangkok timezone (UTC+7).
When it's noon in Seoul, what time is it in Hanoi?
When it's 12:00 PM (noon) in Seoul, it's 10:00 AM in Hanoi.
What is the best time to call Hanoi from Seoul?
With only a 2-hour difference, you can comfortably call Hanoi anytime during standard business hours (9 AM–6 PM Seoul time).
What currency does Hanoi use?
Hanoi, Vietnam uses VND. Seoul uses KRW. You will need to check the current exchange rate for transactions between the two.
What language is spoken in Hanoi?
The primary language in Hanoi is Vietnamese. English is widely used for international business communication.
How do I dial Hanoi from Seoul?
To call Hanoi from Seoul, dial your international access code followed by +84 and the local number. Seoul uses country code +82 and Hanoi uses +84.
