Explanation
Express 'by' or 'before' a certain time or action.
Formation
Verb-casual + までに, Noun + までに, Time expression + までに
Detailed explanation
The ～までに grammar point is used to indicate that something must be completed or occurs by a certain time or before a specific action. It can be used with verbs, nouns, and time expressions.
Examples
明日の朝８時までに起きてください。
Ashita no asa hachiji made ni okite kudasai.
Please wake up by 8 a.m. tomorrow.
来週の金曜日までにレポートを提出してください。
Raishuu no kinyoubi made ni repooto wo teishutsu shite kudasai.
Please submit the report by next Friday.
彼が帰るまでに料理を終わらせたい。
Kare ga kaeru made ni ryouri wo owarasetai.
I want to finish cooking before he comes back.
３０分までに駅に着く必要があります。
Sanjuppun made ni eki ni tsuku hitsuyou ga arimasu.
We need to arrive at the station by 30 minutes (from now).
Practice
Grammar content sourced from hanabira.org.