@NonNull
    public static String formatCacheInfoShort(final Geocache cache) {
        final List<String> infos = new ArrayList<>();
        addShortInfos(cache, infos);
        return StringUtils.join(infos, SEPARATOR);
    }
Generate a numeric date and time string according to system-wide settings (locale,
date format) such as "7 september at 12:35".

@param date milliseconds since the epoch
@return the formatted string
main/src/main/java/cgeo/geocaching/utils/Formatter.java