Duration Quantity: Duration (use <a href="http://en.wikipedia.org/wiki/ISO_8601">ISO 8601 duration format</a>). Properties additionalTypealternateNamedescriptiondisambiguatingDescriptionidentifierimagemainEntityOfPagenamepotentialActionsameAssubjectOfurl { "id": "https://schema.org/Duration", "label": "Duration", "comment": "Quantity: Duration (use <a href=\"http://en.wikipedia.org/wiki/ISO_8601\">ISO 8601 duration format</a>).", "subTypeOf": "https://schema.org/Quantity", "enumerationtype": "", "equivalentClass": "", "properties": "https://schema.org/additionalType, https://schema.org/alternateName, https://schema.org/description, https://schema.org/disambiguatingDescription, https://schema.org/identifier, https://schema.org/image, https://schema.org/mainEntityOfPage, https://schema.org/name, https://schema.org/potentialAction, https://schema.org/sameAs, https://schema.org/subjectOf, https://schema.org/url", "subTypes": "", "supersedes": "", "supersededBy": "", "isPartOf": "" }Getting Started