Wellington is 16 hours ahead of Brasília
Best overlap: 4:00 PM to 6:00 PM in Brasília is 8:00 AM to 10:00 AM in Wellington.
Your shared working hours run 4:00 PM to 6:00 PM in Brasília (8:00 AM to 10:00 AM in Wellington). Because Wellington is 16 hours ahead of Brasília, the shared window is only about 2 hours. A fixed slot at 4:00 PM in Brasília (8:00 AM in Wellington) saves a lot of back-and-forth. In this window Brasília and Wellington are on different dates, with Wellington on the next day. Watch the DST gap — when Wellington changes its clocks and Brasília stays the same, this window slides by an hour.