末日 (まつじつ, matsujitsu) Japanese meaning | KotomoraPlease send the invoice by the last day of this month.
The contract ends on the last day of next month.
Usage patterns
〈事〉は末日までに〈動詞〉to do something by the last day of the month
Please pay this month's invoice by the last day of the month.
末日をもって〈事〉as of the last day of the month, (something happens)
This contract will end as of the last day of this month.
〈月〉の末日the last day of (a given month)
Salary is paid on the last day of every month.