on Daily Vacation Time expenditure for free 7 trial Premium membership that reverts to Basic account

After a premium (Platinum/Diamond) 7 day free trial ends, assuming I decide to come back to a Basic account, and if daily vacation days have been spent, are those days spent be considered among the "60" days that have been added to the basic account because of the Premium feature, or are they gonna be considered from the Basic days? In other words, since I have 30 days available when starting the trial... will I end up having 23 days of vacation remaining, or will I keep my original 30 days?

I don't think anyone has worked that out.

You're going to have to let us know.

https://support.chess.com/article/624-how-does-vacation-work-w-much-time-do-i

https://support.chess.com/article/1363-what-does-each-level-of-membership-get-me

I see no bonus of vacation for premium. However, premium members do accrue vacation at a faster pace.  Diamond members add 5 days per month. I don't know how they split it up.

I suppose that the days should be taken from the added 60 days, because, let's assume that instead of a free 7 day trial Platinum/Diamond account, we expand the question to a paid Platinum/Diamond account where we've spent, more than the possible basic vacation days and we want to get back to a Basic account. In such cases after and if the extra vacation days that are added because of the Premium are removed, we might end up having 0 or negative days days of vacation left so we would automatically lose all of our daily games just because we reversed to a Basic account. Regarding why would I use vacation time during a free 7 day trial that was asked earlier, actually at first I wanted to have a little taste of the automated-vacation feature but after that I realized that I'd appreciate spending more time looking at the Premium features than thinking about my current daily games. Opportunity cost.

As I said, there is no added 60 days.

Diamond members just add 5 days per month.

Or about one per week.

So if you start with 30 and use 7 and add back 1 or maybe 2, you'll end up with 24 or 25.

Yes, you are right in that there is no added 60 days in one step. My wrong.

Currently I have available according to my settings and I wonder how I ended up having 1 month and 24 days of vacation time. (I know that before entering vacation (and after becoming Premium) I had around 1 month and 28 days) This doesn't match with the information from the article. I've always had a Basic account. I don't see how the math for this works and seems inconsistent to me at this point.

I actually think an upgrade may automatically come with some vacation days. It's certainly not stated anywhere, but I seem to recall seeing other posts where it's happened.

Finally, my free trial ended (extended to 14 days) and the Vacation days hat have been added to the Premium account stayed the same after the Downgrade to a Basic account (1 month and 24 days), so the days available didn't revert to the same limit days of vacation that Basic accounts have.