tenth day of the month; ten days
fifth day of the month; five days
ninth day of the month; nine days
(for) how many days; what day (of the month)
fiftieth day after the birth of a child; fifty days
Heian-period ceremony where a newlywed groom and bride eat a rice-cake on the third night after the wedding ceremony
Heian-period ceremony where a newlywed groom and bride eat a rice-cake on the third night after the wedding ceremony