The best time to call Kolkata from Shanghai is 11.5 AM–5 PM your time (Shanghai). Kolkata, India is 2 hours behind Shanghai, China. You have 5.5 hours of business hours overlap for scheduling calls.
Call between 11.5 AM–5 PM Shanghai time. This is 9 AM–2.5 PM in Kolkata.
Shanghai and Kolkata share 5.5 hours of overlapping business hours (9 AM – 5 PM local time).
The best time to call Kolkata from Shanghai is 11.5 AM–5 PM Shanghai time. This gives you 5.5 hours of business hours overlap.
Kolkata is 2 hours behind Shanghai.
Avoid calling before 9.5 AM your time (they haven't started their day).
Yes, Shanghai and Kolkata have approximately 5.5 hours of overlapping business hours per day.
You have 5.5 hours of overlap. Call during 11.5 AM–5 PM your time for the best results.
Both in business hours Both awake One outside comfort zone Sleeping hours
Shanghai: 11.5 AM–5 PM GMT+8
Kolkata: 9 AM–2.5 PM GMT+5:30
| Shanghai (GMT+8) | Kolkata (GMT+5:30) | Status |
|---|---|---|
| 7 AM | 5 AM | 🔴 They're sleeping |
| 8 AM | 6 AM | 🔴 They're sleeping |
| 9 AM | 7 AM | 🟡 They're awake |
| 10 AM | 8 AM | 🟡 They're awake |
| 11 AM | 9 AM | ✅ Both in office |
| 12 PM | 10 AM | ✅ Both in office |
| 1 PM | 11 AM | ✅ Both in office |
| 2 PM | 12 PM | ✅ Both in office |
| 3 PM | 1 PM | ✅ Both in office |
| 4 PM | 2 PM | ✅ Both in office |
| 5 PM | 3 PM | 🟡 They're awake |
| 6 PM | 4 PM | 🟡 They're awake |
| 7 PM | 5 PM | 🟡 They're awake |
| 8 PM | 6 PM | 🟡 They're awake |
| 9 PM | 7 PM | 🟡 They're awake |