Yes, exactly when the old man told the story at the beginning, and the bell rings it's exactly midnight 22nd of April,like the man says it in the movie. Spooky.
You need to start the DVD at 21st April 23:56:56 exactly.
Next year I will reveal more about that time. Keep in mind the German dub differs from the English original if you want to figure out the secret yourself.
Have a nice movie time everyone.