Best overlap: 8:00 AM to 5:00 PM in Boston is 9:00 AM to 6:00 PM in São Paulo.
The hours that work for both Boston and São Paulo are 8:00 AM to 5:00 PM (Boston) and 9:00 AM to 6:00 PM (São Paulo). 9 hours of shared hours is more than enough — slot meetings wherever they're most convenient for the people involved. A quick caveat — Boston's clocks move for daylight saving and São Paulo's don't, so the times here are right for only part of the year.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Boston America/New York | ||||||||||||||||||||||||
São Paulo America/Sao Paulo |
Long-distance relationships, parents working overseas, grandkids in Auckland and grandparents in London. The work guides do not really apply. Here is a practical playbook for keeping family relationships strong across time zones. -