code: function substituteTimeAgo(string, number, withoutSuffix, isFuture, lang) {
          return lang.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
      }
docs: **********************************
  Relative Time
  ********************************** helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize