What is the time period for howls moving castle?

Howls moving castle is a book and anime movie about a hat maker named Sophie. She is cast under a spell by the witch of the waste, a witch filled with hatred to all. Sophie is turned into an old women, and un able to face her family, she runs away into the mountains. With the help of a turnip head scarecrow, Sophie finds her self in howl the wizards moving castle. She gets involved with Howl's witchcraft, and in some occasions has to pretend to be Howl's mother. While having to deal with selfish Howl and the fire demon Calcifer, Sophie must try to undo the spell that turned her into an old women.

other characters: markl (known as Michael in the book) , Howl, Calcifer, Witch of the Waste, Sophie, Queen Solomon, turniphead (the prince.)