The size of a Japanese date string needs at most 22+1 bytes, because one Chinese character consists of 2 byte (xxxx year yy month zz date => 8 + 2 + 4 + 2 + 4 + 2). However thunar_util_humanize_time() in thunar_util.c prepare only 16 bytes buffer, and thus g_date_strftime() is always failed.
2007-04-27 Benedikt Meurer <benny@xfce.org> * thunar/thunar-util.c(thunar_util_humanize_file_time): Use larger date buffer. Bug #3127.