Out of curiosity, does anyone know or have any idea what time the trial's taking place? If it's before 3 PM Harry's unable to use his Time Turner to change the events of the trial. Unless he cheats the Time Turner like last time, or gets his Time Turner's restriction taken off, but he can't do that easily while the trial is going on.
Harry had used up all six hours from his Time-Turner, and there were still no clues, and he had to go to sleep now if he wanted to be functional at Hermione's trial the next day.
"Wanted to be functional" meaning if he doesn't sleep now, he'd have little sleep. Which wouldn't have been a problem in the first place if he was allowed to sleep in.
"I think this has gone on quite long enough, wouldn't you say, Lord Malfoy? The boy will miss his classes."
...which means classes are still going on, at that moment (Monday). I'm not sure when classes end for Harry but it's probably closer to morning than evening.
Harry had read the Daily Prophet that morning.
Okay I have no clue now. But the wording implies that it's not morning anymore, so... I'm going with noon/early afternoon, 12 to 2 PMish.
Time Tuners can't change events. MacGonagal says that when she gives it to him and the story doesn't say otherwise, yet.
EDIT: New discussion thread here.
This is a new thread to discuss Eliezer Yudkowsky's Harry Potter and the Methods of Rationality and anything related to it. With two chapters recently the previous thread has very quickly reached 500 comments. The latest chapter as of 17th March 2012 is Ch. 79.
There is now a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author's Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)
The first 5 discussion threads are on the main page under the harry_potter tag. Threads 6 and on (including this one) are in the discussion section using its separate tag system. Also: one, two, three, four, five, six, seven, eight, nine, ten.
As a reminder, it's often useful to start your comment by indicating which chapter you are commenting on.
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically: