How long it takes to build a product from scratch

I built, designed, SEO optimised, technical seo and seo audited then submitted it for indexing and it was sitting on page 3 all within 24 hours. It’s how passionate you are about building that product. To get to the top page takes time determined by the Boss Google.

Can not define it...as it all depends on requirements, team, tech stack, etc.. and there is always new in industry and if you want to add it to your product you have to do it again,....and its continuous process until the client or product owners says enough... my opinion

it's different for every product!