A presidential term refers to the fixed period during which a president serves in office. In many countries, including the United States, a presidential term typically lasts four years. Presidents can be re-elected for additional terms, but there are limits; for example, in the U.S., a president can serve a maximum of two terms, totaling eight years. The concept of a presidential term is designed to ensure regular leadership transitions and prevent the concentration of power. This system allows citizens to vote for their leaders periodically, promoting democratic governance and accountability within the government.