Singapore to Kolkata Time Difference
Kolkata is 2 hours 30 min behind Singapore. When it is noon in Singapore, it is 9.5:00 in Kolkata.
Singapore (UTC+8) → Kolkata (UTC+5:30)
🕐 Interactive Time Explorer
When it's 20:00 in Singapore, it's 17.5:00 in Kolkata
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Singapore & Kolkata✓ Perfect Match (5 hours)
◐ Extended Hours (5 hours)
✈️ Travel Information
Distance
2,891 km
Est. Flight Time
~4.4h
Time Difference
-2.5h
Work Hours Overlap
5h
Good
🔴 Office Closed
Today 12:00
12:00 - 17:00
⏰ Quick Conversion
06:00
Singapore
3.5:00
Kolkata
09:00
Singapore
6.5:00
Kolkata
12:00
Singapore
9.5:00
Kolkata
15:00
Singapore
12.5:00
Kolkata
18:00
Singapore
15.5:00
Kolkata
21:00
Singapore
18.5:00
Kolkata
00:00
Singapore
21.5:00
Kolkata (-1)
03:00
Singapore
0.5:00
Kolkata
Frequently Asked Questions
How many hours is Singapore ahead of Kolkata?
Kolkata is 2 hours 30 min behind Singapore. When it is 12:00 noon in Singapore, it is 9.5:00 in Kolkata. Singapore operates on Asia/Singapore (UTC+8), while Kolkata uses Asia/Kolkata (UTC+5.5).
What is the best time to call Kolkata from Singapore?
There are 6 hours of overlapping business time (9 AM–5 PM) between Singapore and Kolkata. The best window is 12:00–18:00 Singapore time (9.5:00–15.5:00 in Kolkata).
Does the Singapore 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 Singapore and Kolkata
The distance between Singapore and Kolkata is approximately 2,891 km. A direct flight typically takes around 4.4 hours. Your arrival clock will show local Kolkata time — use our Flight Time Calculator to predict exact arrival times.