Extended Time is a term used to describe a period of time that is longer than the usual or expected amount. It is often used in reference to deadlines, as when an employer or school grants an extension to a student or employee to complete a task. The term can also be used to refer to a longer period of time than originally planned for an event or activity. In crossword puzzles, the term is often abbreviated to 'AEON, ' which is a four-letter word.