thời gian chạy
/ˈrʌnɪŋ taɪm//ˈrʌnɪŋ taɪm/The term "running time" refers to the duration or length of a film, television show, play, or any other performance or artistic work. The phrase "running time" is a literal interpretation of how long it takes for the work to run or unfold, from beginning to end. The term has been in use since the early 20th century, when the advent of motion pictures enabled audiences to experience lengthy narrative storytelling. Prior to recorded cinema, theatrical works usually had more concise lengths due to practical factors, such as the limitations of live performances and audience attention spans. However, as technologies advanced and artistic expressions evolved, the concept of "running time" became increasingly central to understanding and promoting particular artistic works, particularly in the commercial contexts of film and television. Today, "running time" is a standard measure used by distributors, programmers, and critics to categorize and compare works, regardless of medium or genre.