Kingdom Hearts II Question regarding Roxas/Axel conversation

In Kingdom Hearts 2 Final Mix, after defeating Roxas as a boss, you see that set of cutscenes (Roxas' birth, w/Axel on the clock tower, and battle with Riku). My question is, having just finished 358/2 Days, when, chronologically, does that conversation with Axel on the clock tower occur? It certainly doesn't happen anytime during Days. One would assume that it happens during Kingdom Hearts 2, while Sora is going to different worlds, but I was lead to believe that Roxas was inside Sora for the duration of Kingdom Hearts 2, from the "end of summer vacation" up through the end, the climax of Sora feeling Roxas inside him being the fight they have. The scene seems to be Roxas and Axel's last time with each other, so I am lead to believe that it happens during Kingdom Hearts 2.. it just is not made clear. Somebody confirm?

EDIT: Watching it again for the 20th time, I'm beginning to realize that when Roxas says "So.. I have to go. Sora's waiting for me," it may be possible that this is taking place in a short period of time between when Roxas' summer vacation ends and he actually merges with Sora. Though I was originally under the impression that he rejoins with Sora at the end of the prologue of Kingdom Hearts 2 right before Sora awakens, it is possible that he first goes and meets with Axel in this scene, then, realizing that he must hurry up and rejoin with Sora so that he may awaken, hurries back and does so.
I am now quite sure that this is the case, because when Axel makes statements like "Maybe you're going to sleep" and "Soon I won't even be able to talk to your consciousness like this," it implies that Roxas will be one with Sora thus "going to sleep" and not allowing Axel to talk directly to Roxas anymore. The whole conversation is lead by the fact that Roxas will be merging with Sora, it just isn't outright said.

 

Wow, this is deep.

However, I don't think that he would just quit exploring the mansion, go to the clock tower, and go back into it to be absorbed into Sora again...

 

The event happens once Roxas loses.
It's just Axel's passing soul was strong enough to somehow connects with his or something.
To tell the truth i don't really know for sure, but i know it's confirmed the conversation happened while Roxas and Sora where fighting.

 

So he lost, vanished, talked to Axel, then joined back to Sora? That makes more sense I guess.

 

Not really, he lost and talked to Axel right away, like if time had stopped.

 

Wait was this the scene where you can see them laughing with each other
if so theres a reason.

Spoiler

in 358/2 when you beat riku at the end you start seeing scenes on the clock tower with roxas axel and xion up the laughing.

then the scene repeates itself on the bottom screen but xion is half see able.

then one final time where xion is no longer seeable as she is dissapearing from everyones memories.

if that is the scene then it did happen in days just made roxas look like he had is arm on a invisible persons shoulder.

 

Ahh I see.

In days, she tries to get his attention, but he never notices anymore :(

 

Wait, so, basically this conversation took place in his mind? I mean, if this is what you're implying, Axel's already dead by this point, no? I'd like to believe that maybe there's a few day period between when Roxas sees Sora in his pod in Virtual Twilight Town and when he actually joins with him.. and at some point during that day or few day period or however long it may be, he meets with Axel one last time. Axel also mentions how he "talked to Namine" about how Roxas might have a heart, and it was, in fact, during this same period of time in which Riku entrusted Axel to watch over Namine, so they would have had the chance to talk about it.

 

Hi, this is my first time posting here!

I'd like to say that this is probably simpler than your making it out to be. It's all in Roxas' head. A similar thing happens in Harry Potter where the main character withdraws inward, has a long conversation with a departed character, than returns to find that no time has passed at all. This could easily be the situation with Roxas, and that the clocktower is actually the TT from Roxas' heart, seeing as he actually has one.