United States
India
Houston to Kolkata Time Difference
Kolkata is 10.5 hours ahead of Houston
Houston vs Kolkata — At a Glance
Houston to Kolkata — Hour-by-Hour
About Houston and Kolkata
Houston (population: 2.3M) is known for NASA's Johnson Space Center, energy sector capital, and the Texas Medical Center. Kolkata (population: 14.9M) is known for cultural capital of India, Howrah Bridge, and the Durga Puja festival.
Business Hours Overlap
The 10.5-hour gap means Houston and Kolkata have almost no standard-hours overlap. Early morning calls from Houston or late evening calls from Kolkata are the most practical options.
Calling Between Cities
With 10.5 hours between Houston (+1) and Kolkata (+91), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.
Currency
Houston uses USD while Kolkata uses INR. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Houston and Kolkata share English as a common language, which simplifies business communication.
Use our world clock tool to compare Houston and Kolkata visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Houston and Kolkata?
Kolkata, India is 10.5 hours ahead of Houston, United States. Houston is in the America/Chicago timezone (UTC-5) and Kolkata is in the Asia/Kolkata timezone (UTC+5:30).
When it's noon in Houston, what time is it in Kolkata?
When it's 12:00 PM (noon) in Houston, it's 10:30 PM in Kolkata.
What is the best time to call Kolkata from Houston?
The best time to call Kolkata from Houston is during the overlapping business hours. When it's 9 AM in Houston, it's 7:30 PM in Kolkata. Aim for late morning to early afternoon in Houston for the best chance of reaching someone during working hours.
What currency does Kolkata use?
Kolkata, India uses INR. Houston uses USD. 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. Houston also speaks English, making communication easier.
How do I dial Kolkata from Houston?
To call Kolkata from Houston, dial your international access code followed by +91 and the local number. Houston uses country code +1 and Kolkata uses +91.
