This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.
This API is available on Firefox OS for internal applications only.
MozTimeManager object you can use to change the device's time.
var time = window.navigator.mozTime;
navigator.moztime is a
Not part of any specification.
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