Vietnam
India
Hanoi to Chennai Time Difference
Chennai is 1.5 hours behind Hanoi
Hanoi vs Chennai — At a Glance
Hanoi to Chennai — Hour-by-Hour
About Hanoi and Chennai
Hanoi (population: 8.1M) is known for Vietnam's capital, Ho Chi Minh Mausoleum, Old Quarter, and pho cuisine. Chennai (population: 10.9M) is known for India's automobile hub (Detroit of India), classical music, and Marina Beach.
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 Chennai.
Calling Between Cities
Calling between Hanoi (+84) and Chennai (+91) is convenient — the time difference is small enough that you're unlikely to disturb anyone during normal waking hours.
Currency
Hanoi uses VND while Chennai uses INR. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Hanoi primarily speaks Vietnamese, while Chennai speaks Tamil and English. For business communication, English is commonly used as a bridge language in international settings.
Use our world clock tool to compare Hanoi and Chennai visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Hanoi and Chennai?
Chennai, India is 1.5 hours behind Hanoi, Vietnam. Hanoi is in the Asia/Bangkok timezone (UTC+7) and Chennai is in the Asia/Kolkata timezone (UTC+5:30).
When it's noon in Hanoi, what time is it in Chennai?
When it's 12:00 PM (noon) in Hanoi, it's 10:30 AM in Chennai.
What is the best time to call Chennai from Hanoi?
With only a 1.5-hour difference, you can comfortably call Chennai anytime during standard business hours (9 AM–6 PM Hanoi time).
What currency does Chennai use?
Chennai, India uses INR. Hanoi uses VND. You will need to check the current exchange rate for transactions between the two.
What language is spoken in Chennai?
The primary languages in Chennai are Tamil, English. English is widely used for international business communication.
How do I dial Chennai from Hanoi?
To call Chennai from Hanoi, dial your international access code followed by +91 and the local number. Hanoi uses country code +84 and Chennai uses +91.
