Hello! I wonder about the brazilian timezone you call as "America/Sao_Paulo". In Brazil, São Paulo is just a city (with a very large population indeed), but as oficial time in Brazil we use the capital of Brazil, called "Brasília". Why do you use the city of São Paulo as reference? Our legal local time is Brasilia and not São Paulo. Can you please explain it better? Thank you in advance. Best regards. *​--* Prof. Dr. Christian Puhlmann Brackmann Coordenador Geral de Pós-Graduação Pró-Reitoria de Pesquisa, Pós-graduação e Inovação Instituto Federal de Educação, Ciência e Tecnologia Farroupilha (IFFAR) brackmann@iffarroupilha.edu.br +55 55 3226 6636 / 98100-1819 *​​* *“Education is the most powerful weapon which you can use to change the world”*Nelson Mandela ​​