What is the calculated difference in time between Rio de Janeiro and New York City?

To calculate the difference in time between Rio de Janeiro and New York City, you need to know the time zone of each city. Rio de Janeiro is located in the UTC−03:00 time zone, while New York City is located in the UTC−04:00 time zone.

Since New York City is one hour behind Rio de Janeiro, the calculated difference in time between the two cities is -1 hour.