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TextTrackCue: startTime property

The startTime property of the TextTrackCue interface returns and sets the start time of the cue.

Value

A number representing the start time, in seconds.

Examples

In the following example a new VTTCue (which inherits from TextTrackCue) is created starting at 0.1 second and ending at 0.9 seconds. The startTime property is then printed to the console.

js

let video = document.querySelector("video");
let track = video.addTextTrack("captions", "Captions", "en");
track.mode = "showing";

let cue1 = new VTTCue(0.1, 0.9, "Hildy!");
console.log(cue1.startTime); // 0.1
track.addCue(cue1);

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
startTime 23 12 31 10 ≤12.1 6 4.4 25 31 ≤12.1 7 1.5

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https://developer.mozilla.org/en-US/docs/Web/API/TextTrackCue/startTime