[Name] Time Chamber [Description] A room lit by "beautiful, dancing diamond-sparkling light". [Contents] 
A room in which various time-related devices are kept, such as clocks of every description and Time-Turners (necklaces with hourglass pendants, which will send the wearer back in time when the pendant is turned over). It also contains a mysterious bell jar, inside which anything will grow steadily younger and younger, and then slowly return to its original age in a never-ending cycle. Hermione mentions that the department's entire stock of smashed Time-Turners were not even replaced by September 1996.[HP6]