docs: function DateFormatHelper() {
  
      var self = {};
  
      self.masks = {
          "default":      "ddd mmm dd yyyy HH:MM:ss",
          shortDate:      "m/d/yy",
          shortDate2:      "mm/dd/yyyy",
          mediumDate:     "mmm d, yyyy",
          longDate:       "mmmm d, yyyy",
          fullDate:       "dddd, mmmm d, yyyy",
          shortTime:      "h:MM TT",
          shortTime2:      "h:MM",
          mediumTime:     "h:MM:ss TT",
          mediumTime2:     "h:MM:ss",
          longTime:       "h:MM:ss TT Z",
          longTime2:       "h:MM:ss TT",
          concatenatedDate:  "yyyymmdd",
          isoDate:        "yyyy-mm-dd",
          isoTime:        "HH:MM:ss",
          shortIsoTime:        "HH:MM",
          longIsoTime:        "HH:MM:ss TT",
          isoDateTime:    "yyyy-mm-dd'T'HH:MM:ss",
          isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
      };
  
  
      self.i18n = {
          dayNames: [
              "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
              "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
          ],
          monthNames: [
              "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
              "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
          ]
      };
  
      var format = function(date, mask, utc) {
          var dF = self;
  
          var	token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
              timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
              timezoneClip = /[^-+\dA-Z]/g,
              pad = function (val, len) {
                  val = String(val);
                  len = len || 2;
                  while (val.length < len) val = "0" + val;
                  return val;
              };
  
          // You can't provide utc if you skip other args (use the "UTC:" mask prefix)
          if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
              mask = date;
              date = undefined;
          }
  
          // Passing date through Date applies Date.parse, if necessary
          date = date ? new Date(date) : new Date;
          if (isNaN(date)) throw SyntaxError("invalid date");
  
          mask = String(dF.masks[mask] || mask || dF.masks["default"]);
  
          // Allow setting the utc argument via the mask
          if (mask.slice(0, 4) == "UTC:") {
              mask = mask.slice(4);
              utc = true;
          }
  
          var	_ = utc ? "getUTC" : "get",
              d = date[_ + "Date"](),
              D = date[_ + "Day"](),
              m = date[_ + "Month"](),
              y = date[_ + "FullYear"](),
              H = date[_ + "Hours"](),
              M = date[_ + "Minutes"](),
              s = date[_ + "Seconds"](),
              L = date[_ + "Milliseconds"](),
              o = utc ? 0 : date.getTimezoneOffset(),
              flags = {
                  d:    d,
                  dd:   pad(d),
                  ddd:  dF.i18n.dayNames[D],
                  dddd: dF.i18n.dayNames[D + 7],
                  m:    m + 1,
                  mm:   pad(m + 1),
                  mmm:  dF.i18n.monthNames[m],
                  mmmm: dF.i18n.monthNames[m + 12],
                  yy:   String(y).slice(2),
                  yyyy: y,
                  h:    H % 12 || 12,
                  hh:   pad(H % 12 || 12),
                  H:    H,
                  HH:   pad(H),
                  M:    M,
                  MM:   pad(M),
                  s:    s,
                  ss:   pad(s),
                  l:    pad(L, 3),
                  L:    pad(L > 99 ? Math.round(L / 10) : L),
                  t:    H < 12 ? "a"  : "p",
                  tt:   H < 12 ? "am" : "pm",
                  T:    H < 12 ? "A"  : "P",
                  TT:   H < 12 ? "AM" : "PM",
                  Z:    utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
                  o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
                  S:    ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
              };
  
  
  
          return mask.replace(token, function ($0) {
              return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
          });
      }
  
      /**
       * Get mask name from a given format
       *
       * @param {string} format
       *
       * @return {string} maskName
       * */
      var getMaskNameFromFormat = function (format) {
  
          var name = "default";
  
          for (var f in self.masks) {
              if ( self.masks[f] === format )
                  return f
          }
  
          return name
      }
  
  
      /**
       *  Count days from the current date to another
       *
       *  TODO - add a closure to `ignoreWeekend()` based on Utils::Validator
       *  TODO - add a closure to `ignoreFromList(array)` based on Utils::Validator
       *
       *  @param {object} dateTo
       *  @return {number} count
       * */
      var countDaysTo = function(date, dateTo) {
  
          if ( dateTo instanceof Date) {
              // The number of milliseconds in one day
              var oneDay = 1000 * 60 * 60 * 24
  
              // Convert both dates to milliseconds
              var date1Ms = date.getTime()
              var date2Ms = dateTo.getTime()
  
              // Calculate the difference in milliseconds
              var count = Math.abs(date1Ms - date2Ms)
  
              // Convert back to days and return
              return Math.round(count/oneDay);
          } else {
              throw new Error('dateTo is not instance of Date() !')
          }
      }
  
      /**
       *  Will give an array of dates between the current date to a targeted date
       *
       *  TODO - add a closure to `ignoreWeekend()` based on Utils::Validator
       *  TODO - add a closure to `ignoreFromList(array)` based on Utils::Validator
       *
       *  @param {object} dateTo
       *  @param {string} [ mask ]
       *
       *  @return {array} dates
       * */
      var getDaysTo = function(date, dateTo, mask) {
  
          if ( dateTo instanceof Date) {
              var count       = countDaysTo(date, dateTo)
                  , month     = date.getMonth()
                  , year      = date.getFullYear()
                  , day       = date.getDate() + 1
                  , dateObj   = new Date(year, month, day)
                  , days      = []
                  , i         = 0;
  
              for (; i < count; ++i) {
                  if ( typeof(mask) != 'undefined' ) {
                      days.push(new Date(dateObj).format(mask));
                  } else {
                      days.push(new Date(dateObj));
                  }
  
                  dateObj.setDate(dateObj.getDate() + 1);
              }
  
              return days || [];
          } else {
              throw new Error('dateTo is not instance of Date() !')
          }
      }
  
      var getDaysInMonth = function(date) {
          var month   = date.getMonth();
          var year    = date.getFullYear();
          var dateObj = new Date(year, month, 1);
          var days = [];
          while (dateObj.getMonth() === month) {
              days.push(new Date(dateObj));
              dateObj.setDate(dateObj.getDate() + 1);
          }
          return days;
      }
  
      /**
       * Add or subtract hours
       *  Adding 2 hours
       *      => myDate.addHours(2)
       *  Subtracting 10 hours
       *      => myDate.addHours(-10)
       * */
      var addHours = function(date, h) {
          var copiedDate = new Date(date.getTime());
          copiedDate.setHours(copiedDate.getHours()+h);
          return copiedDate;
      }
  
      return {
          format          : format,
          countDaysTo     : countDaysTo,
          getDaysTo       : getDaysTo,
          getDaysInMonth  : getDaysInMonth,
          addHours        : addHours
      }
  
  }