Blogger and most other website building platforms will have an inbuilt scheduling tool to post your articles at a given time. We would suggest using this to post your articles on your blog.
However, you will also want to share your articles as soon as they are released, across your social media platforms.
In that case, you will want to automate this too.
We would encourage you to use dlvr.it to schedule your articles across your social media platform. Dlvr.it is free and easy to use which will allow you to do this. You can find a link below: