The best time to call Shanghai from Kolkata is 9 AM–2.5 PM your time (Kolkata). Shanghai, China is 2 hours ahead of Kolkata, India. You have 5.5 hours of business hours overlap for scheduling calls.
Call between 9 AM–2.5 PM Kolkata time. This is 11.5 AM–5 PM in Shanghai.
Kolkata and Shanghai share 5.5 hours of overlapping business hours (9 AM – 5 PM local time).
The best time to call Shanghai from Kolkata is 9 AM–2.5 PM Kolkata time. This gives you 5.5 hours of business hours overlap.
Shanghai is 2 hours ahead of Kolkata.
Avoid calling after 7.5 PM your time (it's late night there).
Yes, Kolkata and Shanghai have approximately 5.5 hours of overlapping business hours per day.
You have 5.5 hours of overlap. Call during 9 AM–2.5 PM your time for the best results.
Both in business hours Both awake One outside comfort zone Sleeping hours
Kolkata: 9 AM–2.5 PM GMT+5:30
Shanghai: 11.5 AM–5 PM GMT+8
| Kolkata (GMT+5:30) | Shanghai (GMT+8) | Status |
|---|---|---|
| 7 AM | 9 AM | 🟡 They're awake |
| 8 AM | 10 AM | 🟡 They're awake |
| 9 AM | 11 AM | ✅ Both in office |
| 10 AM | 12 PM | ✅ Both in office |
| 11 AM | 1 PM | ✅ Both in office |
| 12 PM | 2 PM | ✅ Both in office |
| 1 PM | 3 PM | ✅ Both in office |
| 2 PM | 4 PM | ✅ Both in office |
| 3 PM | 5 PM | 🟡 They're awake |
| 4 PM | 6 PM | 🟡 They're awake |
| 5 PM | 7 PM | 🟡 They're awake |
| 6 PM | 8 PM | 🟡 They're awake |
| 7 PM | 9 PM | 🟡 They're awake |
| 8 PM | 10 PM | 🔴 They're sleeping |
| 9 PM | 11 PM | 🔴 They're sleeping |