Look up duration in Wiktionary, the free dictionary.
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Duration may refer to:
- The amount of time elapsed between two events
- Duration of action, how long a drug produces its effects
- Duration (finance) – the weighted average time until the various cash flows from a security, such as a bond, are received
- Duration (music) – an amount of time or a particular time interval, often cited as one of the fundamental aspects of music
- Duration (philosophy) – a theory of time and consciousness first proposed by Henri Bergson
- Duration (project management) – the number of calendar periods for the completion of a project in project management
