Function monthRange

codebase/sources/dhtmlxscheduler.js:15828–15831

(year, month)

    return PY_WEEKDAYS[date.getUTCDay()];
  };
  var monthRange = function(year, month) {
    var date = datetime(year, month + 1, 1);
    return [getWeekday(date), getMonthDays(date)];
  };
  var combine = function(date, time) {
    time = time || date;
    return new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(), time.getHours(), time.getMinutes(), time.getSeconds(), time.getMilliseconds()));