How many hour is Brazil behind America?

Your question contains a misunderstanding. Brazil and the United States are in different time zones, but it's not accurate to say that one country is behind the other in a general sense. The exact time difference between Brazil and the United States depends on the specific locations being compared and on whether daylight saving time (DST) is in effect.

Brazil has four time zones, and there are multiple time zones in the United States. So, the time difference between a specific city in Brazil and a specific city in the United States can vary. For instance, when it's 12:00 pm in Sao Paulo, Brazil (the largest city in Brazil, in the UTC−03:00 time zone), it would be the following times in some major U.S. cities:

- 1:00 pm in New York City (UTC−04:00)

- 12:00 pm in Chicago (UTC−05:00)

- 11:00 am in Denver (UTC−06:00)

- 10:00 am in Los Angeles (UTC−07:00)

During the period when daylight saving time (DST) is observed in the United States (typically from March to November), the above time difference would be different for those locations that observe DST. For example, in New York City, where DST is observed, it would be 2:00 pm when it's 12:00 pm in Sao Paulo during the DST period.

So, to accurately determine the time difference between Brazil and America, you would need to specify the specific locations you are interested in and consider whether or not DST is a factor.