Yosef Karo, Translation:Shulchan Aruch — Orach Chaim 672…
“ Paragraph 1 — The Hanukkah light should not be kindled before the sun sets, but rather while [the sun] is concluding its setting. One should neither be late nor early. But some say that if one is busy, he can start from mid-mincha time on, provided he puts in it oil [to last] until passers-by cease from the marketplace. ”
