lib/vendor/sugar.js
function(localeCode, set) {
      var loc = getLocalization(localeCode, false);
      CurrentLocalization = loc;
      // The code is allowed to be more specific than the codes which are required:
      // i.e. zh-CN or en-US. Currently this only affects US date variants such as 8/10/2000.
      if(localeCode && localeCode != loc['code']) {
        loc['code'] = localeCode;
      }
      return loc;
    }
function(localeCode, set) {
      var loc = getLocalization(localeCode, false);
      CurrentLocalization = loc;
      // The code is allowed to be more specific than the codes which are required:
      // i.e. zh-CN or en-US. Currently this only affects US date variants such as 8/10/2000.
      if(localeCode && localeCode != loc['code']) {
        loc['code'] = localeCode;
      }
      return loc;
    }
*
@method Date.setLocale(<code>)
@returns Locale
@short Sets the current locale to be used with dates.
@extra Sugar has support for 13 locales that are available through the "Date Locales" package. In addition you can define a new locale with %Date.addLocale%. For more see @date_format.

*