SHDate.getUTCDay()
The getUTCDay() method returns the day of the week in the specified date according to universal time, where 0 represents Sunday.
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Syntax
getUTCDay()
Return value A number. If the Date object represents a valid date, an integer number corresponding to the day of the week for the given date, according to universal time: 0 for Sunday, 1 for Monday, 2 for Tuesday, and so on. Otherwise, NaN if the Date object doesn’t represent a valid date.
Examples
Using getUTCDay() The following example assigns the weekday portion of the current date to the variable weekday.
var today = new SHDate(); var weekday = today.getUTCDay();
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDay