Prague is 5 hours ahead of São Paulo
Best overlap: 8:00 AM to 1:00 PM in São Paulo is 1:00 PM to 6:00 PM in Prague.
Shoot for 8:00 AM to 1:00 PM in São Paulo; your Prague colleagues will see that as 1:00 PM to 6:00 PM. Prague is 5 hours ahead of São Paulo, so you've got a workable 5-hour overlap — ideal for a standing meeting around 8:00 AM in São Paulo (1:00 PM in Prague). Daylight saving complicates things slightly: Prague observes it, São Paulo doesn't, so the difference flexes by an hour part of the year.