Sydney to Kolkata Time Difference
Kolkata is 4 hours 30 min behind Sydney. When it is noon in Sydney, it is 7.5:00 in Kolkata.
Sydney (UTC+10) → Kolkata (UTC+5:30)
🕐 Interactive Time Explorer
When it's 01:00 in Sydney, it's 20.5:00 in Kolkata
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Sydney & Kolkata✓ Perfect Match (3 hours)
◐ Extended Hours (7 hours)
✈️ Travel Information
Distance
9,139 km
Est. Flight Time
~11.8h
Time Difference
-4.5h
Work Hours Overlap
3h
Limited
🔴 Office Closed
Today 14:00
14:00 - 17:00
⏰ Quick Conversion
06:00
Sydney
1.5:00
Kolkata
09:00
Sydney
4.5:00
Kolkata
12:00
Sydney
7.5:00
Kolkata
15:00
Sydney
10.5:00
Kolkata
18:00
Sydney
13.5:00
Kolkata
21:00
Sydney
16.5:00
Kolkata
00:00
Sydney
19.5:00
Kolkata (-1)
03:00
Sydney
22.5:00
Kolkata (-1)
Frequently Asked Questions
How many hours is Sydney ahead of Kolkata?
Kolkata is 4 hours 30 min behind Sydney. When it is 12:00 noon in Sydney, it is 7.5:00 in Kolkata. Sydney operates on Australia/Sydney (UTC+10), while Kolkata uses Asia/Kolkata (UTC+5.5).
What is the best time to call Kolkata from Sydney?
There are 4 hours of overlapping business time (9 AM–5 PM) between Sydney and Kolkata. The best window is 14:00–18:00 Sydney time (9.5:00–13.5:00 in Kolkata).
Does the Sydney to Kolkata time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Sydney and Kolkata
The distance between Sydney and Kolkata is approximately 9,139 km. A direct flight typically takes around 11.8 hours. Your arrival clock will show local Kolkata time — use our Flight Time Calculator to predict exact arrival times.