Japan
India
Tokyo to Kolkata Time Difference
Kolkata is 3.5 hours behind Tokyo
Tokyo vs Kolkata — At a Glance
Tokyo to Kolkata — Hour-by-Hour
About Tokyo and Kolkata
Tokyo (population: 13.9M) is known for the world's largest metropolitan economy, Shibuya Crossing, anime culture, and Toyota. Kolkata (population: 14.9M) is known for cultural capital of India, Howrah Bridge, and the Durga Puja festival.
Business Hours Overlap
The best window for business calls between Tokyo and Kolkata is 9:00 AM–1.5:00 PM Tokyo time (0.5:00 PM–5:00 PM in Kolkata).
Calling Between Cities
To call Kolkata (+91) from Tokyo (+81), aim for late morning or early afternoon in Tokyo — that corresponds to morning hours in Kolkata when people are usually available.
Currency
Tokyo uses JPY while Kolkata uses INR. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Tokyo primarily speaks Japanese, while Kolkata speaks Bengali and English and Hindi. For business communication, English is commonly used as a bridge language in international settings.
Use our world clock tool to compare Tokyo and Kolkata visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Tokyo and Kolkata?
Kolkata, India is 3.5 hours behind Tokyo, Japan. Tokyo is in the Asia/Tokyo timezone (UTC+9) and Kolkata is in the Asia/Kolkata timezone (UTC+5:30).
When it's noon in Tokyo, what time is it in Kolkata?
When it's 12:00 PM (noon) in Tokyo, it's 8:30 AM in Kolkata.
What is the best time to call Kolkata from Tokyo?
The best time to call Kolkata from Tokyo is during the overlapping business hours. When it's 9 AM in Tokyo, it's 5:30 AM in Kolkata. Aim for late morning to early afternoon in Tokyo for the best chance of reaching someone during working hours.
What currency does Kolkata use?
Kolkata, India uses INR. Tokyo uses JPY. You will need to check the current exchange rate for transactions between the two.
What language is spoken in Kolkata?
The primary languages in Kolkata are Bengali, English, Hindi. English is widely used for international business communication.
How do I dial Kolkata from Tokyo?
To call Kolkata from Tokyo, dial your international access code followed by +91 and the local number. Tokyo uses country code +81 and Kolkata uses +91.
