We are trying to and need to have the year after the date in a blog post. We are using the Skye Template. For example, the date just shows "Oct 2" how do we get it to display "Oct 2, 2019"?
This can be done with some Javascript. Read the datetime attribute, extract the year and append it to the date displayed in the date-callout. You'll need to find all matching elements if you want to do this on the blog list page, or just once if you only need it when the full blog article is being shown.
People in the community generally need a working link to the site to be able to provide a working solution.