Lunae cursu notant tempora, non, ut plerique, cum orbem sidus implevit, sed cum se curvare coepit in cornua, et idcirco breviores habent menses, quia spatium eorum ad hunc lunae modum  dirigunt.
They reckon time by the course of the moon, not, as most do, when it has filled its orb, but when it has begun to curve into horns, and therefore they have shorter months, because they reckon their  duration according to that phase of the moon.
final_alignments\Quintus_Curtius_Alexander_Book8.json