Runtime

Runtime, run-time, or run time may refer to:

Computing

 * Runtime (program lifecycle phase), the period during which a computer program is executing
 * Runtime library, a program library designed to implement functions built into a programming language
 * Runtime system, software designed to support the execution of computer programs
 * Software execution, the process of performing instructions one by one during the runtime phase

Art and entertainment

 * The duration of a film, song, or television program