The term EXACTLY ON TIME can be broken down into two crossword solutions: PROMPT (6 letters) and PUNCTUAL (8 letters). PROMPT is defined as being on time or early, while PUNCTUAL is defined as being on time or even a few minutes early. Both words are used to describe someone who is always on time for their commitments. Being PUNCTUAL is an important trait to have in many aspects of life, such as work, school, and social engagements.