A project I'm working on needs to show a daily reading depending on the date you access the page. I plan to create entries for each day of the year, and each year it will show the post for that day.
For example, I'll create an entry with a post date of May 1, 2015. That entry should show on May 1, 2016/2017/2018, etc.
I've tried only putting in MM-DD in the postDate parameter, but no luck; that throws a PHP error. Any ideas?