public static void formatCacheLists(final @NonNull Geocache cache, final @Nullable List<AbstractList> storedLists, final @Nullable String excludeList, final List<SpannableString> infos) {
        if (null != storedLists) {
            final Set<Integer> lists = cache.getLists();
            for (final AbstractList temp : storedLists) {
                if (lists.contains(temp.id) && !temp.title.equals(excludeList)) {
                    infos.add(new SpannableString(temp.title));
                }
            }
        }
    }
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