BRT to EST

Brasília Time is UTC−3. Brazil observed summer time in its southern and southeastern states for decades, but abolished it in 2019, and the clocks have stayed put since. Before that, São Paulo moved to UTC−2 from November to February, and the gap to New York reached 3 hours in the northern winter. Now it is 2 hours in winter and 1 in summer, shifting only when the US changes clocks on the second Sunday of March and the first Sunday of November.

Brazil has four time zones. Brasília Time covers the most populous states; Manaus and most of the Amazon are on UTC−4, one hour behind São Paulo; Acre in the far west is UTC−5; and the Fernando de Noronha islands are UTC−2.

Brazil's stock exchange, B3, adjusts its trading hours when the US changes clocks, so that its session keeps lining up with Wall Street. American investors who follow Brazilian stocks should check the current schedule each March and November rather than relying on a fixed hour.

The small time difference makes Brazil a natural nearshore partner for US companies. A 9-to-5 day in New York is 11:00 AM to 7:00 PM in São Paulo in winter and 10:00 AM to 6:00 PM in summer, so the two cities share almost the whole working day. Overnight flights between São Paulo and New York take about ten hours. Brazilian communities in Newark's Ironbound, Framingham in Massachusetts and South Florida make the same trip for family visits. For Buenos Aires, on the same offset, see Argentina to Eastern time.