The president Bolsonaro announced the end of DST to 2019/2020 in his twitter account: https://twitter.com/jairbolsonaro/status/1114267358477070337 This is the twitter of ministry of mines and energy where more details will be post: https://twitter.com/Minas_Energia Em sex, 5 de abr de 2019 às 18:32, Steffen Thorsen <thorsen@timeanddate.com> escreveu:
According to multiple sources the Brazilian president wants to get rid of DST.
https://gmconline.com.br/noticias/politica/bolsonaro-horario-de-verao-deve-a...
https://g1.globo.com/economia/noticia/2019/04/05/governo-anuncia-fim-do-hora...
https://republicadecuritiba.net/2019/04/05/bolsonaro-afirma-que-brasil-nao-t...
There might be some formalities still, but given these articles it seems very likely that they actually will stop changing clocks.
Best regards, Steffen Thorsen - timeanddate.com