Both the Pac-12 men's and women's basketball seasons will begin with the rest of the NCAA schedule on Nov. 25, the conference announced Thursday.
Fans won't be permitted to attend any games at Pac-12 campuses.
"The health and safety of our student-athletes and all those connected to Pac-12 sports remains our guiding light and No. 1 priority," Pac-12 CEO Group Chair Michael Schill said in a statement.
He added: "Our CEO Group has taken a measured and thoughtful approach to today's decision, including extensive consultation with stakeholders on the evolving information and data related to health and safety."
The Pac-12 announced in August that it was postponing all games until 2021, at the earliest. However, the conference cites updated recommendations from the Medical Advisory Committee as reasoning for choosing to now begin the season in November.
Last week, the NCAA selected Nov. 25 as its official start date for the 2020-21 season. The campaign was originally scheduled to begin Nov. 10 but was postponed due to the COVID-19 pandemic.