Transfer window in terms of movement is 1st July, that's when you can officially join new club. However, 1st June is when you are allowed to start signing contracts, approaching players, released players leave club.
I've been racking my brain about when we can sign sign players and when they can move. Couldn't remember for the life in me. It's a stupid system you should be allowed to make the moves from June 1st. Ah the old BBC 606 days i miss them a little bit. TBH I honestly miss LIW slating Grayson at every turn