Brazil has abolished "summer time" in 2019: the timezones America/Sao_Paulo, for instance, where I'm in, shows time with +1h from the actual hour here...
* to avoid this, I'd configured other timezone here...
Can you test if the time is correct in current Milhouse builds? Looks like the 9.2 version ships with a bit older timezone info (early 2019), master is using latest (Sep 2019) timezone data.