Time Turners

A Time Turner may be used for time travel. Hermione receives a Time-Turner from McGonagall in Prisoner of Azkaban, so she could attend more classes than time would normally allow. Hermione is ordered to keep it a secret from everyone, including Harry and Ron, although they do notice the impossibility of her schedule, and several bizarre disappearances and reappearances. The increased schedule does leave her strained towards the end of the year, however. Hermione lets Harry and Ron in on the secret near the end of the book, when she and Harry use the Time-Turner to save Sirius and Buckbeak.

A large supply of Time-Turners is kept at the Ministry, as seen in Order of the Phoenix; however, during the events of that book a glass-fronted cabinet containing Time-Turners is destroyed. Due to their time-affecting properties, the cabinet is seen to fall, shatter and repair itself repeatedly. In Half-Blood Prince, Hermione mentions an article in The Daily Prophet stating that "the entire stock of Ministry Time-Turners" was destroyed during that incident. The books do not discuss who else may be in possession of Time-Turners outside of the Ministry.

Hermione's Time-Turner resembles an hourglass pendant on a necklace; it is unclear if all of them do. The hourglass pendant is twisted to move through time, and the number of turns on the hourglass corresponds to the number of hours one travelled back in time. The travel ends as the traveller arrives to the point in time of which he went back in time (e.g. Hermione and Harry go back three hours; three hours after their arrival in the past, they return to the time period they turned back).[18] It appears that Time-Turners do not allow their possessors to alter the events that have already happened. In Prisoner of Azkaban, all of the events registered by Harry and Hermione were inadvertently recreated by them when they traveled through time later


Source

30 Points To Slytherin

~Moved to Library!