Parallel
Exodus 12:6
Rahlfs Septuagint (1935) · Berean Standard Bible
καὶ ἔσται ὑμῖν διατετηρημένον ἕως τῆς τεσσαρεσκαιδεκάτης τοῦ μηνὸς τούτου καὶ σφάξουσιν αὐτὸ πᾶν τὸ πλῆθος συναγωγῆς υἱῶν Ισραηλ πρὸς ἑσπέραν
You must keep it until the fourteenth day of the month, when the whole assembly of the congregation of Israel will slaughter the animals at twilight (note: Hebrew between the two evenings).