HTMLMediaElement: duration property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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

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

js
const obj = document.createElement("video");
console.log(obj.duration); // NaN

Specifications

Specification
HTML
# dom-media-duration-dev

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
duration

Legend

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Full support
Full support

See also