Mart. (the days numbered 24, 25, 26, 27, and 28 from the beginning of February in a common year), so that the intercalated day was the first half of the doubled day.
Mart. (zilele de 24, 25, 26, 27 și 28 de la începutul lui februarie într-un an obișnuit), astfel că ziua suplimentară era prima jumătate a zilei dublate.