I think he started working around January 15, maybe January 17-18. After two and a half weeks of vacation. He had already bought the first two 3090s. Problems with Vcards appeared and lasted about 2 weeks.
Why do I say that? He had already sold the 2 Titans, without testing the 2 3090s. If he had started in early January he would have realized the Vcard problems earlier.
His target was April 30 to put the update on the market. But I think he realized, by the patrons reaction, that he could push it further, towards May.
By mid-March he thought it would be good to inflate the Aiden event, I think he tweaked it in the sense that he added scenes with the idea of finishing at the end of May.
But again a few miscalculations and maybe laziness, takes us to mid-June.
After this update it will take another 2-3 weeks off, already 5-6 weeks. Pretty good life, an employee only has 1 month of vacation.