Drag-N-Drop Builders or DIY website builders are, for instance, Wix, SquareSpace, etc.
Your timeline will truly depend on how much time you spend on it yourself. For the most part, if you have decent computer skills, you should be able to put together a DIY website of 2-3 pages within 10-25 hours.
But, you’ll be handling everything yourself, including your hosting, domain, SEO, content, design, and troubleshooting. You can hire Wix or SquareSpace experts to help you finish, but then you’ll be spending more money, which is not the reason you tried a DIY builder in the first place.