πρὸς τὸ καίριον

From LSJ

Ἔλπιζε τιμῶν τοὺς θεοὺς πράξειν καλῶς → Spera felicitatem, si deos colas → Erhoffe Wohlergeh'n, wenn du die Götter ehrst

Menander, Monostichoi, 142

Greek > English (Woodhouse)

early, at the right moment, in the nick of time