Below is the script that gives month-day-year separation according to Date.
FirstDay: The date 7 days before today
lastDay: The date 12 days before today
yesterday: yesterday
var today = new Date();
var today1 = new Date();
var sonDay = new Date();
var firstDay = new Date();
var yesterday = new Date();
var day = today.getDate();
var month = today.getMonth();
var year = today.getFullYear();
var month = month+1;
var dayB = today1.getDate();
var monthB = today1.getMonth();
var yearB = today1.getFullYear();
var monthB = monthB+1;
yesterday.setDate(yesterday.getDate()-1);
sonDay.setDate(sonDay.getDate()-7);
firstDay.setDate(firstDay.getDate()-12);
firstDay.setMonth(firstDay.getMonth()+1);
sonDay.setMonth(sonDay.getMonth()+1);
yesterday.setMonth(yesterday.getMonth()+1);
var yeari = firstDay.getFullYear();
var yearS = lastDay.getFullYear();
var yearY = yesterday.getFullYear();
var firstDayM =firstDay.getMonth();
var sonDayM =sonDay.getMonth();
var yesterdayM =yesterday.getMonth();
var firstDay1 =firstDay.getDate();
var sonDay1 =sonDay.getDate();
var yesterday1 =yesterday.getDate();
var monthArray = new Array();
monthArray[0] = "January";
monthArray[1] = "February";
monthArray[2] = "March";
monthArray[3] = "April";
monthArray[4] = "May";
monthArray[5] = "June";
monthArray[6] = "July";
monthArray[7] = "August";
monthArray[8] = "September";
monthArray[9] = "October";
monthArray[10] = "November";
monthArray[11] = "Range";
var month = monthArray[today.getMonth()];
var ayilk = monthArray[firstDay.getMonth()-1];
var ayson = monthArray[sonDay.getMonth()-1];
var aydun = monthArray[yesterday.getMonth()-1];
if(dayB<10)
dayB = "0"+dayB.toString();
if(monthB<10)
monthB="0"+monthB.toString();
var today=dayB.toString()+"."+monthB.toString()+"."+yearB.toString();
execution.setVariable("today",today);
execution.setVariable("month",ay);
execution.setVariable("awk",awk);
execution.setVariable("ayson",ayson);
execution.setVariable("aydun",aydun);
execution.setVariable("year",year);
execution.setVariable("yeari",yeari);
execution.setVariable("yearS",yearS);
execution.setVariable("yearY",yearY);
execution.setVariable("day",day.toString());
execution.setVariable("ilkDay1",ilkDay1.toString());
execution.setVariable("sonDay1",sonDay1.toString());
execution.setVariable("yesterday1",yesterday1.toString());
execution.setVariable("month",month);
execution.setVariable("firstDayM",ilkDayM);
execution.setVariable("sonDayM",sonDayM);
execution.setVariable("yesterdayM",yesterdayM);