As previously mentioned, it will totally depend on the scale & type of your website. If you build a 5-page informative website, then is a single-day process, at max. However, if you are running a vast eCommerce business, then it might take days until your desired Ecommerce Website Builder is fully operational. There are basically two ways to create a website:
Hiring Professionals: Another factor would be the method or platform you are choosing to create your website. In case you are hiring professional developers & designers, you may be able to highly customize your website as per your needs, but you are bound to incur huge costs. This could seriously put a lot of financial burden upon you.
Website Builders: There is an alternate way for those who want to spend less money & in a rational way. Website builders are platforms where users can take monthly (or yearly) plans to create a website without any knowledge of coding. These platforms provide pre-made customizable website templates & dashboards for the users, where they can many modifications to their website anytime, anywhere.