Εἰκοστή/ Εἰκὰς/ Εἰκοσάδες, XX day
From today’s sunset: twentieth day of Elaphebolion.
Sacred Εἰκὰς: the twentieth of each month is always sacred to Apollo and Athena. Monthly festival dedicated to Lord Apollo.

“On the great twentieth, in full day, a wise man should be born. Such a one is very sound-witted.”
“He (Hesiod) calls it ‘great’ because it contains most of the days of the month; therefore all the day is suitable for birth, or he (Hesiod) has called it 'great’, as if it were completing great undertakings. The one who is generated in this day is very virtuous and learned.”
Hesiod and scholia, Erga, 792

(Belvedere Apollo, detail. Roman copy after a Greek bronze original of 330–320 BCE. Found in the late 15th century. Now in the Vatican Museum…)