The nenbutsu-ko held on a monthly fixed day is called tsukinami, and is generally held on the day of the festival dedicated to Jizo Bosatsu (Ksitigarbha Bodhisattva), Kannon Bosatsu (Guan Yin Bodhisattva), Fudo Myoo (Acala, one of the Five Wisdom Kings) and so on.
毎月の定められた日に行われる念仏は月並みと呼ばれ、多く、地蔵菩薩・観音菩薩・不動明王などを祀る縁日に行われる。