São Paulo is 8.75 hours behind Kathmandu
Best overlap: 4:45 PM to 6:45 PM in Kathmandu is 8:00 AM to 10:00 AM in São Paulo.
Kathmandu and São Paulo overlap from 4:45 PM to 6:45 PM (Kathmandu) to the equivalent 8:00 AM to 10:00 AM in São Paulo — that's your meeting window. São Paulo is 8.75 hours behind Kathmandu, which leaves a narrow 2-hour window. Treat 4:45 PM in Kathmandu (8:00 AM in São Paulo) as the time and build around it.