About 5 days later, from January 13, 2021, through January 18, 2021, Uganda begins to restore some internet services in the nation. Most social media sites appear to still be blocked.

https://www.bbc.com/news/world-africa-55705404

Ugandan President Yoweri Museveni claimed Saturday that he had been re-elected for a sixth term as president since 1986.

This is not the longest internet shutdown.  Ethiopia shutdown internet access for nearly two months in 2020.  Belerus had several full and partial internet shutdowns over several months in 2020.