(Exodus 13:3) "And Moses said to the people: Remember this day when you went out of Egypt, etc." I know only that the exodus from Egypt is mentioned in the daytime. Whence do I derive (the same for) the evenings? From (Devarim 16:3) "… so that you remember the day of your going out of Egypt all the days of your life": "the days of your life" — the days; "all the days of your life" — (to include) the nights, as per Ben Zoma.