Chess Rules Technicality

Now, the chances of this happening in an actual game are basically none, but I'm still curious as to what the official rules say about this kind of situation:

Suppose that players A and B are playing an OTB game. A is winning on the board, but B is winning on time. At a point in the game, it is A's turn to move. He has a mate in 1, but less than 1 second on his clock. So what happens is this: A picks up the piece he is using to mate - his time runs out - then he places that piece on the mating square (I think I've seen people use that term before). According to official FIDE rules, is this a win for A, who checkmated B, or a win for B, who won on time. And would it make a difference if A's time had run out before he had touched the piece he was moving, or if A had already moved the pieve to the mating square before time ran out, but hadn't let go yet?

Player A would lose on time.

At any point in time, if your time runs out and you HAVEN'T OFFICIALLY CONFIRMED THE CHECKMATING MOVE, it is considered a loss. You only officially confirm a move when you release a piece from your hand.

Hello, i have a question but really dont know how to create a topic. My question is, Player A and B is playing otb. A has made his move and didnot hit the clock. B has made his move immediately. what should be the results or punishments here for 1) classic game 2) blitz game.

thanks.