夜遅く, 夜おそく, よるおそく
Adverb
late at night, at a late hour
その夜遅くに彼女に会った。
まで, 迄
Particle, Usually in kana
1. until (a time), till, to, up to
2. to (a place or person), as far as
3. to (an extent), so far as, even
4. only, merely
10時までに夕食の準備をしておくように取り計らいなさい。