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