# duration

The duration of the item (movie, audio recording, event, etc.) in [ISO 8601 duration format](http://en.wikipedia.org/wiki/ISO_8601).

## Expected Types

| Type | Description |
|------|-------------|
| [Duration](https://schema.org.ai/Duration) | Quantity: Duration (use [ISO 8601 duration format](http://en.wikipedia.org/wiki/ISO_8601)). |
| [QuantitativeValue](https://schema.org.ai/QuantitativeValue) | A point value or interval for product characteristics and other purposes. |

## Used on Types

| Type | Description |
|------|-------------|
| [Audiobook](https://schema.org.ai/Audiobook) | An audiobook. |
| [Episode](https://schema.org.ai/Episode) | A media episode (e.g. TV, radio, video game) which can be part of a series or season. |
| [Event](https://schema.org.ai/Event) | An event happening at a certain time and location, such as a concert, lecture, or festival. Ticketing information may be added via the [offers](https://schema.org.ai/offers) property. Repeated events may be structured as separate Event objects. |
| [MediaObject](https://schema.org.ai/MediaObject) | A media object, such as an image, video, audio, or text object embedded in a web page or a downloadable dataset i.e. DataDownload. Note that a creative work may have many media objects associated with it on the same web page. For example, a page about a single song (MusicRecording) may have a music video (VideoObject), and a high and low bandwidth audio stream (2 AudioObject's). |
| [Movie](https://schema.org.ai/Movie) | A movie. |
| [MusicRecording](https://schema.org.ai/MusicRecording) | A music recording (track), usually a single song. |
| [MusicRelease](https://schema.org.ai/MusicRelease) | A MusicRelease is a specific release of a music album. |
| [QuantitativeValueDistribution](https://schema.org.ai/QuantitativeValueDistribution) | A statistical distribution of values. |
| [Schedule](https://schema.org.ai/Schedule) | A schedule defines a repeating time period used to describe a regularly occurring [Event](https://schema.org.ai/Event). At a minimum a schedule will specify [repeatFrequency](https://schema.org.ai/repeatFrequency) which describes the interval between occurrences of the event. Additional information can be provided to specify the schedule more precisely. This includes identifying the day(s) of the week or month when the recurring event will take place, in addition to its start and end time. Schedules may also have start and end dates to indicate when they are active, e.g. to define a limited calendar of events. |
| [ServicePeriod](https://schema.org.ai/ServicePeriod) | ServicePeriod represents a duration with some constraints about cutoff time and business days. This is used e.g. in shipping for handling times or transit time. |

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Quoted from Schema.org 30.1, https://schema.org/duration, under CC BY-SA 3.0. Served by the Org.AI Foundation at https://schema.org.ai/duration.