Time Difference: Kolkata vs Shanghai
Shanghai is 2.5 hours ahead of Kolkata.
Quick Reference
- Kolkata
- IST (GMT+5:30)
No Daylight Saving Time
- Shanghai
- CST (GMT+8)
No Daylight Saving Time
Frequently Asked Questions
- What is the time difference between Kolkata and Shanghai?
- Shanghai is 2.5 hours ahead of Kolkata.
- When is the best time to call from Kolkata to Shanghai?
- The best time to call is during overlapping business hours (9 AM – 5 PM) in both cities. Use the interactive converter on this page to visually compare hours side by side.
- Does the time difference change with daylight saving time?
- The time difference may change when either city enters or exits daylight saving time. Kolkata uses IST and Shanghai uses CST.