HTMLMediaElement.duration

The read-only HTMLMediaElement property duration indicates the length of the element's media in seconds.

Syntax

myDuration = htmlMediaElement.duration

Value

A double-precision floating-point value indicating the duration of the media in seconds. If no media data is available, the value NaN is returned. If the element's media doesn't have a known duration—such as for live media streams—the value of duration is +Infinity.

Examples

var obj = document.createElement('video');
console.log(obj.duration); // NaN

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'HTMLMediaElement.duration' in that specification.
Living Standard
HTML5
The definition of 'HTMLMediaElement.duration' in that specification.
Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
durationChrome Full support 43Edge Full support 12Firefox Full support 3.5IE Full support 9Opera Full support YesSafari Full support 6WebView Android Full support 43Chrome Android Full support 43Firefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also