Bahasa Jepangnya “bulan pendek”

keadaan kecil; bulan pendek; sekolah dasar; lebih kecil

smallness; short month (i.e. having fewer than 31 days); elementary school; smaller (of two things, places, etc. with the same name)

bulan pendek (kurang dari 31 hari)

short month (i.e. having fewer than 31 days)