Yes! At the top of the job results list you will see the word “Posted”. Clicking on the word “Posted” will change how the job postings are sorted.
The job postings are initially sorted by the most recent positions listed at the top and they get older as you go down the list (preferred listings taking precedence). Using the "Posted" button will re-sort by date/time regardless if the listing is considered preferred or not. Arrow up will mean newest first, arrow down will mean oldest first.