[312] ἦμος δέ. The day is divided into three portions, “ἠώς, μέσον ἦμαρ, δείλη” Il.21. 111.So is the night, cp. Il.10. 251“μάλα γὰρ νὺξ ἄνεται, ἐγγύθι δ᾽ ἠώς”,
“ἄστρα δὲ δὴ προβέβηκε, παρῴχηκεν δὲ πλέων νὺξ”“τῶν δύο μοιράων, τριτάτη δ᾽ ἔτι μοῖρα λέλειπται”. Here μετὰ … βεβήκει means to ‘cross the zenith and decline,’ as “μετενίσσετο” Od.9. 58.Translate, ‘But when it was in the third watch of the night, and the stars had southed.’