LXX Deut 16:6

ἀλλ᾿ ἢ εἰς τὸν τόπον ὃν ἐὰν ἐκλέξηται Κύριος ὁ θεός σου ἐπικληθῆναι τὸ ὄνομα αὐτοῦ ἐκεῖ, θύσεις τὸ πάσχα ἑσπέρας πρὸς δυσμὰς ἡλίου ἐν τῷ καιρῷ ᾧ ἐξῆλθες ἐξ Αἰγύπτου.

You must only offer the Passover sacrifice at the place the LORD your God will choose as a dwelling for His Name. Do this in the evening as the sun sets, at the same time you departed from Egypt.