The getUTCDay() method returns the day of the week in the specified date according to universal time, where 0 represents Sunday.
dateObj.getUTCDay()
None.
The value returned by getUTCDay() is an integer corresponding to the day of the week: 0 for Sunday, 1 for Monday, 2 for Tuesday, and so on.
getUTCDay()The following example assigns the weekday portion of the current date to the variable weekday.
var today = new Date(); var weekday = today.getUTCDay();
Created by Mozilla Contributors, license: CC-BY-SA 2.5