I had checked that page a few months and it had nothing, that's why I came here and contributed to making the timeline as accurate!
Now I checked again and they seem to only stick to whichever official date is given on-screen. For example, they have the Crash of Flight 37 in "Mid 2019" (although in Gen V it is given a May 28 date, I believe), and then only bother to say "2022 • The events of The Boys Season 3", not broken down in days or even months, and then incorrectly places Gen V Season 1 in 2023, and says the Events of The Boys Seasons 4 will take place in 2024.
I understand that maybe they don't want to take wild guesses and just stick to on-screen dates, but even then they're not placing some dates like the September 30 obituary date for Susan Raynor, and then place Homelander's fake birthday on July 4 due to a social media post. So, it doesn't commit fully.
I would say this timeline in The Comic Board is more accurate, even if we have to contradict some on-screen dates to make sense of it. However, it has room for improvement and can be perfected, of course, and hopefully The Boys season 4 gives us more of an insight in regards to when Gen V season 1 takes place.