class TimeZones {

    public static short map( String tzid )
    {
        if ( !TIME_ZONE_STRING_TO_SHORT.containsKey( tzid ) )
        {
            throw new IllegalArgumentException( String.format( "unknown tzid '%s'", tzid ) );
        }
        return TIME_ZONE_STRING_TO_SHORT.get( tzid );
    }

    private  TimeZones();

}