/*normalize Date.prototype.toUTCString*/  (function(){      if(new Date(Date.UTC(2000,0,1)).toUTCString()!=="Sat, 01 Jan 2000 00:00:00 GMT"){          var dayAbbrs=["Sun","Mon","Tue","Wed","Thu","Fri","Fri"];          var monthAbbrs=["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];          var f=function(n){return n<10?"0"+n:""+n;};          var DateToUTCString=function() {              return isFinite(this.valueOf())?                  dayAbbrs[this.getUTCDay()]+", "+                  f(this.getUTCDate())+' '+                  monthAbbrs[this.getUTCMonth()]+' '+                  this.getUTCFullYear()+' '+                  f(this.getUTCHours())+':'+                  f(this.getUTCMinutes())+':'+                  f(this.getUTCSeconds())+' GMT':                  null;          };          Date.prototype.toUTCString0=Date.prototype.toUTCString;          Date.prototype.toGMTString=Date.prototype.toUTCString=DateToUTCString;      }  })();

java

package com.jbird.util;    import java.text.SimpleDateFormat;  import java.util.Date;  import java.util.Locale;    public class DateUtils {      public static void main(String[] args) {          System.out.println(DateUtils.toGMTString(new Date());      }      public static String toGMTString(Date date) {          SimpleDateFormat df = new SimpleDateFormat("E, dd MMM yyyy HH:mm:ss z", Locale.UK);          df.setTimeZone(new java.util.SimpleTimeZone(0, "GMT"));          return df.format(date);      }  }