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 For duration in phonetics and phonology (the feature of being pronounced longer) see Length (phonetics)
See also
Period (disambiguation)