The NBA season start date for the year 2020 was December 22, 2020. This was the beginning of the 2020-2021 NBA season, which was delayed due to the COVID-19 pandemic.

For additional context:

• The 2019-2020 NBA season originally started on October 22, 2019, but was suspended in March 2020 and later resumed in a bubble in July 2020.

• The 2020-2021 NBA season started late, on December 22, 2020, instead of the usual October start typical for regular NBA seasons.