I have clay that is use in window. I wanna dry it faster. How can i?

Here are a few ways to make your air dry clay dry faster. Just be aware that it might cause some to crack, so be careful.

you already know the easiest way which is to place the clay on a windowsill. You can also put a fan next to the clay with good circulation all around.
Another way is by placing the clay in an oven on low heat with the door cracked open but keep an eye on it.