From the Dashboard, click on View/Edit in the News Articles section.
When you hover over a News Article title, you’ll see the Quick Edit link.
After clicking the Quick Edit link, you will see the date settings appear. Edit to your preferences, and be sure to click the blue Update button when complete.
Alternate Method: Changing the date from within the article
From the Dashboard, click on View/Edit in the News Articles section.
Click on the News Article title (you can also click the Edit link).
Click on the Edit link near the date.
After clicking the Edit link, you will see the date settings appear. Edit to your preferences, and be sure to click the blue Update button when complete.