Time-turning

[Dana]

No: HPFGUIDX 167537

Magpie:
> I agree. Hermione's line sets up just how it's working in that 
> scene where she misses class--she forgets to go to a class, just as 
> she might have forgotten to go to one if she weren't using a Time 
> Turner. Therefore she wasn't in it. She has to remember to take two 
> classes during the same hour, and it confuses even her sometimes.
<snip>

Dana:

No, Hermione does not forget to go to class; she fell asleep after 
hiding in the common room until it was time to fill in the place of 
her historical self, this is already after she had taken her second 
class. If what you say would be correct her sudden disappearance when 
Ron, Harry and Hermione are about to enter charms classes makes no 
sense. 
Hermione can't travel to the past time BEFORE she has lived through 
the hour first. There is no past to go back to if it had not yet 
happened. Tomorrow contains no events yet and therefore traveling to 
it to attend class there, would not be considered turning back in 
time. Besides the past self cannot live past the timetraveling point 
so if you travel before you attend the class you get what you see 
happening in that scene, there is no longer a Hermione to enter the 
class room. 

The sleeping Hermione IS the time traveling Hermione not the 
historical record which can't live past the point of time turning. 
And therefore this Hermione becomes the new original. If the other 
one, that we see disappear, would be the original then how could she 
forget to go to Charms classes while she is standing in front of the 
door of the class? She didn't the one sleeping in the common room 
slept past the time turning point and therefore there is suddenly no 
Hermione there. 

Dana