None.

An integer, between 0 and 999, representing the milliseconds for the given date according to universal time. Returns NaN if the date is invalid.

Not to be confused with the timestamp. To get the total milliseconds since the epoch, use the getTime() method.

The following example assigns the milliseconds portion of the current time to the variable milliseconds.

const today = new Date();
const milliseconds = today.getUTCMilliseconds();

• Date.prototype.getMilliseconds()
• Date.prototype.setUTCMilliseconds()