When does sitchin say annunaki are returning?

Answer 1

According to his calculation, their return coincides precicely with the Mayan calender Baktun end date; 2012. That was when he deduced their 3,600 year orbit would put them closest to Earth again. Many astronomers now are certain they have found Nibiru, their star, mistakenly thought of as their planet. They live on the three planets revolving around it, Nibiru is their brown dwarf, apparently. These astronomers think Nibiru will be here by the end of 2011, about November 8th.

Answer 2

Zecharia Sitchin, an author who introduced the concept of the Anunnaki in his Earth Chronicles series, did not explicitly mention a specific date for the return of the Anunnaki in his work. The idea of the Anunnaki returning is based on his interpretations of ancient Sumerian texts and myths, which suggest a cyclical pattern of their presence on Earth. Sitchin's theories are considered controversial and not supported by mainstream scholars or archaeologists.