有没有办法使用(仅)国家代码(有效的 ISO-3166 代码)获得时区?

I think the response is "no because it's a manytomany relationship... there can be many timezone for a country like USA ...". That's the problem...

我尝试过类似的东西:

//CountryEnum contains ISO_3166 values (http://www.chemie.fu-berlin.de/diverse/doc/ISO_3166.html) 
  //List all country to test timezone:
  for (int i = 0; i < CountryEnum.values().length; i++) {
   String isoCountryCode = CountryEnum.values()[i].name();// Get the iso country code
   Locale locale = new Locale(isoCountryCode);// Build a country specific locale
   Calendar calendar = Calendar.getInstance(locale);// Build a calendar with the specific locale
   String timeZone = calendar.getTimeZone().getDisplayName();// Build a timeZone with the calendar
   System.out.println("LOCALE : "+locale+" / COUNTRY: "+isoCountryCode+" / TIMEZONE: "+timeZone);
  }

但它总是返回服务器 TimeZone ...