Cron module to generate new products to categories.

Select category you wish to show new products. At 3 A.M. cron will run to generate new products for the category.

Upload the extension files to your server. Let the install script run, a new category attribute new_products will be added to your catalog.

Select Show New Products = Yes for the category you wish to generate new products for:

Make sure cron is working on your site or use Aoe Scheduler to run the aydus_categorynewproducts_cron: