﴿ فَجُمِعَ ٱلسَّحَرَةُ لِمِيقَٰتِ يَوْمٍۢ مَّعْلُومٍۢ ﴾

“And so the sorcerers were assembled at a set time on a certain day,”

(So the wizards were gathered together) there were 72 of them (at a set time on a day appointed) which was the day of the market, and it also said that it was the day of their festival, and it is also said that it was the day of their new year.