31日【さんじゅういちにち】
- 31st day of the month
- 31 days
noun (common) (futsuumeishi)
Generated: This refers to the specific calendar date, the last day of the month for months that have 31 days.
Today is the 31st.
Generated: This refers to the total number of days in a month that has 31 days, indicating the duration rather than a specific date.
January has 31 days.