Shanghai to Kolkata Time Difference
Kolkata is 2 hours 30 min behind Shanghai. When it is noon in Shanghai, it is 9.5:00 in Kolkata.
Shanghai (UTC+8) → Kolkata (UTC+5:30)
🕐 Interactive Time Explorer
When it's 08:00 in Shanghai, it's 5.5:00 in Kolkata
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Shanghai & Kolkata✓ Perfect Match (5 hours)
◐ Extended Hours (5 hours)
✈️ Travel Information
Distance
3,407 km
Est. Flight Time
~5h
Time Difference
-2.5h
Work Hours Overlap
5h
Good
🟢 Good to Call Now
16:15
12:00 - 17:00
⏰ Quick Conversion
06:00
Shanghai
3.5:00
Kolkata
09:00
Shanghai
6.5:00
Kolkata
12:00
Shanghai
9.5:00
Kolkata
15:00
Shanghai
12.5:00
Kolkata
18:00
Shanghai
15.5:00
Kolkata
21:00
Shanghai
18.5:00
Kolkata
00:00
Shanghai
21.5:00
Kolkata (-1)
03:00
Shanghai
0.5:00
Kolkata
Frequently Asked Questions
How many hours is Shanghai ahead of Kolkata?
Kolkata is 2 hours 30 min behind Shanghai. When it is 12:00 noon in Shanghai, it is 9.5:00 in Kolkata. Shanghai operates on Asia/Shanghai (UTC+8), while Kolkata uses Asia/Kolkata (UTC+5.5).
What is the best time to call Kolkata from Shanghai?
There are 6 hours of overlapping business time (9 AM–5 PM) between Shanghai and Kolkata. The best window is 12:00–18:00 Shanghai time (9.5:00–15.5:00 in Kolkata).
Does the Shanghai 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 Shanghai and Kolkata
The distance between Shanghai and Kolkata is approximately 3,407 km. A direct flight typically takes around 5 hours. Your arrival clock will show local Kolkata time — use our Flight Time Calculator to predict exact arrival times.