core + attic (Attic Area): these terms have been either deprecated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

duration

Defined in the pending.schema.org extension.
Canonical URL: http://schema.org/duration

Thing > Property > duration

The duration of the item (movie, audio recording, event, etc.) in ISO 8601 date format.

Usage: Between 50,000 and 100,000 domains
Values expected to be one of these types
Duration
Used on these types
Event
MediaObject
Movie
MusicRecording
MusicRelease
QuantitativeValueDistribution
Used on types defined in extensions
Audiobook - defined in the bib extension
Sub-properties
loanTerm

Source

https://github.com/schemaorg/schemaorg/issues/1698



Examples

Example 1
<h1>Foo Fighters</h1>
<h2>Video: Interview with the Foo Fighters</h2>
<object ...>
  <param ...>
  <embed type="application/x-shockwave-flash" ...>
</object>
Catch this exclusive interview with Dave Grohl and the Foo Fighters
 about their new album, Rope.
<h2>Songs</h2>
Rope
 Length: 4:05 - 14300 plays
<a href="foo-fighters-rope-play.html">Play</a>
<a href="foo-fighters-rope-buy.html">Buy</a>
From album: <a href="foo-fighters-wasting-light.html">Wasting Light</a>
Everlong
 Length: 6:33 - 11700 plays
<a href="foo-fighters-everlong-play.html">Play</a>
<a href="foo-fighters-everlong-buy.html">Buy</a>
From album: <a href="foo-fighters-color-and-shape.html">The Color And The Shape</a>
<h2>Upcoming shows</h2>
<a href="foo-fighters-may20-fedexforum">FedExForum</a>
Memphis, TN, US
May 20
<a href="ticketworlds.com/foofighters/may20-2011">Buy tickets</a>
<a href="foo-fighters-may23-midamericacenter">Mid America Center</a>
Council Bluffs, IA, US
May 23
<a href="ticketworlds.com/foofighters/may23-2011">Buy tickets</a>
<h2><a href="foo-fighters-photos">28 Photos</a></h2>
<a href="foofighters-1.jpg"><img
alt="Thumbnail and linked photo of Foo Fighters band"
src="foofighters-thumb1.jpg" /></a>
<a href="foofighters-2.jpg"><img
alt="Thumbnail and linked photo of Foo Fighters band"
src="foofighters-thumb2.jpg" /></a>
<a href="foofighters-3.jpg"><img
alt="Thumbnail and linked photo of Foo Fighters band"
src="foofighters-thumb3.jpg" /></a>
<h2>Comments:</h2>
Excited about seeing them in concert next week. -Lawrence , Jan 23
I dig their latest single. -Mary, Jan 19
Showing 1-2 of 18 comments. <a href="foofighters-comments">More</a>
<div itemscope itemtype="http://schema.org/MusicGroup">
<h1 itemprop="name">Foo Fighters</h1>
<div itemprop="video" itemscope itemtype="http://schema.org/VideoObject">
  <h2>Video: <span itemprop="name">Interview with the Foo Fighters</span></h2>
  <meta itemprop="duration" content="T1M33S" />
  <meta itemprop="thumbnail" content="foo-fighters-interview-thumb.jpg" />
  <object ...>
    <param ...>
    <embed type="application/x-shockwave-flash" ...>
  </object>
  <span itemprop="description">Catch this exclusive interview with
    Dave Grohl and the Foo Fighters about their new album, Rope.</span>
</div>
<h2>Songs</h2>
<div itemprop="track" itemscope itemtype="http://schema.org/MusicRecording">
  <span itemprop="name">Rope</span>
  <link itemprop="url" href="foo-fighters-rope.html">
  Length: <meta itemprop="duration" content="PT4M5S">4:05 -
  14300 plays
  <div itemprop="interactionCount" itemscope itemtype="http://schema.org/InteractionCounter">
    <meta itemprop="interactionType" content="http://schema.org/ListenAction" />
    <meta itemprop="userInteractionCount" content="14300" />
  </div>
  <a href="foo-fighters-rope-play.html" itemprop="audio">Play</a>
  <a href="foo-fighters-rope-buy.html" itemprop="offers">Buy</a>
  From album: <a href="foo-fighters-wasting-light.html"
    itemprop="inAlbum">Wasting Light</a>
</div>
<div itemprop="track" itemscope itemtype="http://schema.org/MusicRecording">
  <span itemprop="name">Everlong</span>
  <link itemprop="url" href="foo-fighters-everlong.html">
  Length: <meta itemprop="duration" content="PT6M33S">6:33 -
  11700 plays
  <div itemprop="interactionCount" itemscope itemtype="http://schema.org/InteractionCounter">
    <meta itemprop="interactionType" content="http://schema.org/ListenAction" />
    <meta itemprop="userInteractionCount" content="11700" />
  </div>
  <a href="foo-fighters-everlong-play.html" itemprop="audio">Play</a>
  <a href="foo-fighters-everlong-buy.html" itemprop="offers">Buy</a>
  From album: <a href="foo-fighters-color-and-shape.html"
    itemprop="inAlbum">The Color And The Shape</a>
</div>
<h2>Upcoming shows</h2>
<div itemprop="event" itemscope itemtype="http://schema.org/Event">
  <a href="foo-fighters-may20-fedexforum" itemprop="url">
    <span itemprop="name">FedExForum</span>
  </a>
  <span itemprop="location">Memphis, TN, US</span>
  <meta itemprop="startDate" content="2011-05-20">May 20
  <a href="ticketmaster.com/foofighters/may20-2011" itemprop="offers">Buy tickets</a>
</div>
<div itemprop="event" itemscope itemtype="http://schema.org/Event">
  <a href="foo-fighters-may23-midamericacenter" itemprop="url">
    <span itemprop="name">Mid America Center</span>
  </a>
  <span itemprop="location">Council Bluffs, IA, US</span>
  <meta itemprop="startDate" content="2011-05-23">May 23
  <a href="ticketmaster.com/foofighters/may23-2011" itemprop="offers">Buy tickets</a>
</div>
<h2><a href="foo-fighters-photos">28 Photos</a></h2>
<a href="foofighters-1.jpg" itemprop="image"><img
alt="Thumbnail and linked photo of Foo Fighters band"
src="foofighters-thumb1.jpg" /></a>
<a href="foofighters-2.jpg" itemprop="image"><img
alt="Thumbnail and linked photo of Foo Fighters band"
src="foofighters-thumb2.jpg" /></a>
<a href="foofighters-3.jpg" itemprop="image"><img
alt="Thumbnail and linked photo of Foo Fighters band"
src="foofighters-thumb3.jpg" /></a>
<h2>Comments:</h2>
Excited about seeing them in concert next week. -Lawrence , Jan 23
I dig their latest single. -Mary, Jan 19
<div itemprop="interactionStatistic" itemscope itemtype="http://schema.org/InteractionCounter">
  <meta itemprop="interactionType" content="http://schema.org/CommentAction" />
  <meta itemprop="userInteractionCount" content="18" />
</div>
Showing 1-2 of 18 comments. <a href="foofighters-comments">More</a>
</div>
<div vocab="http://schema.org/" typeof="MusicGroup">
<h1 property="name">Foo Fighters</h1>
<div property="video" typeof="VideoObject">
  <h2>Video: <span property="name">Interview with the Foo Fighters</span></h2>
  <meta property="duration" content="T1M33S" />
  <meta property="thumbnail" content="foo-fighters-interview-thumb.jpg" />
  <object ...>
    <param ...>
    <embed type="application/x-shockwave-flash" ...>
  </object>
  <span property="description">Catch this exclusive interview with
    Dave Grohl and the Foo Fighters about their new album, Rope.</span>
</div>
<h2>Songs</h2>
<div property="track" typeof="MusicRecording">
  <span property="name">Rope</span>
  <meta property="url" content ="foo-fighters-rope.html">
  Length: <meta property="duration" content="PT4M5S">4:05 -
  14300 plays
  <div property="interactionStatistic" typeof="http://schema.org/InteractionCounter">
    <meta property="interactionType" content="http://schema.org/ListenAction" />
    <meta property="userInteractionCount" content="14300" />
  </div>
  <a href="foo-fighters-rope-play.html" property="audio">Play</a>
  <a href="foo-fighters-rope-buy.html" property="offers">Buy</a>
  From album: <a href="foo-fighters-wasting-light.html"
    property="inAlbum">Wasting Light</a>
</div>
<div property="track" typeof="MusicRecording">
  <span property="name">Everlong</span>
  <meta property="url" content ="foo-fighters-everlong.html">
  Length: <meta property="duration" content="PT6M33S">6:33 -
  11700 plays
  <div property="interactionStatistic" typeof="http://schema.org/InteractionCounter">
    <meta property="interactionType" content="http://schema.org/ListenAction" />
    <meta property="userInteractionCount" content="11700" />
  </div>
  <a href="foo-fighters-everlong-play.html" property="audio">Play</a>
  <a href="foo-fighters-everlong-buy.html" property="offers">Buy</a>
  From album: <a href="foo-fighters-color-and-shape.html"
    property="inAlbum">The Color And The Shape</a>
</div>
<h2>Upcoming shows</h2>
<div property="event" typeof="Event">
  <a href="foo-fighters-may20-fedexforum" property="url">
    <span property="name">FedExForum</span>
  </a>
  <span property="location">Memphis, TN, US</span>
  <meta property="startDate" content="2011-05-20">May 20
  <a href="ticketmaster.com/foofighters/may20-2011" property="offers">Buy tickets</a>
</div>
<div property="event" typeof="Event">
  <a href="foo-fighters-may23-midamericacenter" property="url">
    <span property="name">Mid America Center</span>
  </a>
  <span property="location">Council Bluffs, IA, US</span>
  <meta property="startDate" content="2011-05-23">May 23
  <a href="ticketmaster.com/foofighters/may23-2011" property="offers">Buy tickets</a>
</div>
<h2><a href="foo-fighters-photos">28 Photos</a></h2>
<a href="foofighters-1.jpg" property="image"><img
alt="Thumbnail and linked photo of Foo Fighters band"
src="foofighters-thumb1.jpg" /></a>
<a href="foofighters-2.jpg" property="image"><img
 alt="Thumbnail and linked photo of Foo Fighters band"
 src="foofighters-thumb2.jpg" /></a>
<a href="foofighters-3.jpg" property="image"><img
 alt="Thumbnail and linked photo of Foo Fighters band"
 src="foofighters-thumb3.jpg" /></a>
<h2>Comments:</h2>
Excited about seeing them in concert next week. -Lawrence , Jan 23
I dig their latest single. -Mary, Jan 19
<div property="interactionStatistic" typeof="http://schema.org/InteractionCounter">
  <meta property="interactionType" content="http://schema.org/CommentAction" />
  <meta property="userInteractionCount" content="18" />
</div>
Showing 1-2 of 18 comments. <a href="foofighters-comments">More</a>
</div>
<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "MusicGroup",
  "event": [{
    "@type": "Event",
    "location": "Memphis, TN, US",
    "offers": "ticketmaster.com/foofighters/may20-2011",
    "startDate": "2011-05-20",
    "url": "foo-fighters-may20-fedexforum"
  }, {
    "@type": "Event",
    "location": "Council Bluffs, IA, US",
    "offers": "ticketmaster.com/foofighters/may23-2011",
    "startDate": "2011-05-23",
    "url": "foo-fighters-may23-midamericacenter"
  }],
  "image": [
    "foofighters-1.jpg",
    "foofighters-2.jpg",
    "foofighters-3.jpg"
  ],
  "interactionStatistic": {
    "@type": "InteractionCounter",
    "interactionType": "http://schema.org/CommentAction",
    "userInteractionCount": "18"
  },
  "name": "Foo Fighters",
  "track": [{
    "@type": "MusicRecording",
    "audio": "foo-fighters-rope-play.html",
    "duration": "PT4M5S",
    "inAlbum": "foo-fighters-wasting-light.html",
    "interactionStatistic": {
      "@type": "InteractionCounter",
      "interactionType": "http://schema.org/ListenAction",
      "userInteractionCount": "14300"
    },
    "name": "Rope",
    "offers": "foo-fighters-rope-buy.html",
    "url": "foo-fighters-rope.html"
  }, {
    "@type": "MusicRecording",
    "audio": "foo-fighters-everlong-play.html",
    "duration": "PT6M33S",
    "inAlbum": "foo-fighters-color-and-shape.html",
    "name": "Everlong",
    "interactionStatistic": {
      "@type": "InteractionCounter",
      "interactionType": "http://schema.org/ListenAction",
      "userInteractionCount": "11700"
    },
    "offers": "foo-fighters-everlong-buy.html",
    "url": "foo-fighters-everlong.html"
  }],
  "video": {
    "@type": "VideoObject",
    "description": "Catch this exclusive interview with Dave Grohl and the Foo Fighters about their new album, Rope.",
    "duration": "T1M33S",
    "name": "Interview with the Foo Fighters",
    "thumbnail": "foo-fighters-interview-thumb.jpg"
  }
}
</script>
Example 2
<b>12oclock_girona.mp3</b>
Total Time: 0m:15s - Recorded on a terrace of Girona a sunday morning
composed by Roger
 <script type="text/javascript">
var fo = new FlashObject("http://google.com/flash/preview-player.swf", "flashPlayer_719", "358", "16", "6", "#FFFFFF");fo.addVariable("url", "http://media.freesound.org/data/0/previews/719__elmomo__12oclock_girona_preview.mp3");fo.addVariable("autostart", "0");fo.write("flashcontent_719");
</script>
<div itemscope itemtype="http://schema.org/AudioObject">
  <span itemprop="name"><b>12oclock_girona.mp3</b></span>
<script type="text/javascript">
  var fo = new FlashObject("http://google.com/flash/preview-player.swf",
  "flashPlayer_719", "358", "16", "6", "#FFFFFF");fo.addVariable("url","http://media.freesound.org/data/0/previews/719__elmomo__12oclock_girona_preview.mp3");fo.addVariable("autostart", "0");fo.write("flashcontent_719");
</script>
<meta itemprop="encodingFormat" content="mp3" />
 <meta itemprop="contentUrl" content="http://media.freesound.org/data/0/previews/719__elmomo__12oclock_girona_preview.mp3" />
<span class="description">
      <meta itemprop="duration" content="T0M15S" />
      <span itemprop="description">Recorded on a terrace of Girona a sunday morning</span>
</span>
</div>
<div vocab="http://schema.org/" typeof="AudioObject">
  <span property="name"><b>12oclock_girona.mp3</b></span>
<script type="text/javascript">
  var fo = new FlashObject("http://google.com/flash/preview-player.swf",
  "flashPlayer_719", "358", "16", "6", "#FFFFFF");fo.addVariable("url","http://media.freesound.org/data/0/previews/719__elmomo__12oclock_girona_preview.mp3");fo.addVariable("autostart", "0");fo.write("flashcontent_719");
</script>
<meta property="encodingFormat" content="mp3" />
 <meta property="contentUrl" content="http://media.freesound.org/data/0/previews/719__elmomo__12oclock_girona_preview.mp3" />
<span class="description">
      <meta property="duration" content="T0M15S" />
      <span property="description">Recorded on a terrace of Girona a sunday morning</span>
</span>
</div>
<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "AudioObject",
  "contentUrl": "http://media.freesound.org/data/0/previews/719__elmomo__12oclock_girona_preview.mp3",
  "description": "Recorded on a terrace of Girona a sunday morning",
  "duration": "T0M15S",
  "encodingFormat": "mp3",
  "name": "12oclock_girona.mp3"
}
</script>

Schema Version 3.3