One of the things I wanted when doing this blog was the ability to write post and have them published in the future. I also wanted a static site for the ease of maintaining and not worry about keeping the site up to date.
You will need to be using a static site generator that will only create the article on the a set publish date. I’m using Hugo for this site and it has a publishDate in the meta data on the article. If set Hugo will only create the article if its past that date.
Netlify has build hooks which you can call to trigger a rebuild.