The first scene is supposed to take place at the beginning of the COVID lock-down on March 12. However, Playdate (2020) happened on Saint Patrick's Day (March 17), and California Part 1 (2020) takes place near Easter, which was on April 12 in 2020.
The female customer who accuses Glenn and Dina of working for Satan goes from having both hands on her purse to only her left hand between shots.
The news of the NBA suspending play and the news that Tom Hanks and Rita Wilson had contracted the Coronavirus are presented as occurring simultaneously. The NBA suspended play on March 11, 2020, while Hanks and Wilson's diagnosis was made public on the 12th.
Dina claims that she knew of Amy's plans to move to California before Jonah did. While Dina knew about Amy's interview with Zephra corporate before Jonah did, in California Part 1 (2020), Jonah was in the room with Amy when she got the call that she'd gotten the job and began planning the actual move.
In the initial scene, set in March 2020, Amy states that the Coronavirus is not airborne. It was already known by then that the virus was, in fact, airborne.