What does 期日 mean?
期日 is a Japanese noun meaning “fixed date, settlement date” in English. It can also be translated as “deadline” depending on context. It is written as 期日 in kanji, きじつ in hiragana, and kijitsu in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
お支払いの期日を二ヶ月間延長していただけませんでしょうか。
May we therefore ask you for a two months' extension of credit?