Who were the US Presidents since 1980?

Jimmy Carter was President from January 20, 1977, and his term ended on January 20, 1981.

Ronald Reagan was President from January 20, 1981, and his term ended on January 20, 1989.

George H.W. Bush (aka the first Bush), was President from January 20, 1989, and his term ended on January 20, 1993.