Use time-oriented attributes (startTime, endTime) within elements such as contributor, coverage, creator, instantiationPart, instantiationRights, pbcoreDescription, pbcoreGenre, pbcoreInstantiation, pbcoreInstantiationDocument, pbcorePart, pbcoreRightsSummary, pbcoreSubject, pbcoreTitle and publisher.
For example:
<pbcoreDescriptionDocument>
<!-- section removed for clarity -->
<pbcoreDescription descriptionType="Summary" segmentType="Scene" startTime="01:02:03;04" endTime="05:06:07;08">Series of cut-transition between static views of natural beauty.</pbcoreDescription>
<!-- section removed for clarity -->
</pbcoreDescriptionDocument>
