Australia
India
Sydney to Kolkata Time Difference
Kolkata is 5.5 hours behind Sydney
Sydney vs Kolkata — At a Glance
Sydney to Kolkata — Hour-by-Hour
About Sydney and Kolkata
Sydney (population: 5.3M) is known for the Opera House, Harbour Bridge, Australia's financial center, and surfing culture. 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 Sydney and Kolkata is 9:00 AM–11.5:00 AM Sydney time (2.5:00 PM–5:00 PM in Kolkata).
Calling Between Cities
When calling Kolkata (+91) from Sydney (+61), be mindful of the 5.5-hour gap. The safest window is late afternoon in Sydney (4–6 PM) to reach people during waking hours.
Currency
Sydney uses AUD while Kolkata uses INR. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Sydney and Kolkata share English as a common language, which simplifies business communication.
Use our world clock tool to compare Sydney and Kolkata visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Sydney and Kolkata?
Kolkata, India is 5.5 hours behind Sydney, Australia. Sydney is in the Australia/Sydney timezone (UTC+11) and Kolkata is in the Asia/Kolkata timezone (UTC+5:30).
When it's noon in Sydney, what time is it in Kolkata?
When it's 12:00 PM (noon) in Sydney, it's 6:30 AM in Kolkata.
What is the best time to call Kolkata from Sydney?
The best time to call Kolkata from Sydney is during the overlapping business hours. When it's 9 AM in Sydney, it's 3:30 AM in Kolkata. Aim for late morning to early afternoon in Sydney for the best chance of reaching someone during working hours.
What currency does Kolkata use?
Kolkata, India uses INR. Sydney uses AUD. 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. Sydney also speaks English, making communication easier.
How do I dial Kolkata from Sydney?
To call Kolkata from Sydney, dial your international access code followed by +91 and the local number. Sydney uses country code +61 and Kolkata uses +91.
