I found an earlier thread that says 'about July 10-11th'.
Guess that sounds about right?
I am keen to get DS2's as it will help me decide if I need to go and talk to his secondary's SENCO or not. I am keen not to 'label' him unnecessarily, in that if he is 'average' which is what his private tutor's assessment more or less told us last week, and he gets 4's in his SATS, that's fine; but if there's a discrepancy, like he gets a 3 for Literacy (where he got, fwiw, 'age 11.0' for spellings, comprehension, 10.9 for writing and 12.4 for reading: he's actually 11.1- at his tutor's) I may need to flag it with the secondary, a school with an intake of 280!