This posting is particularly useful for anyone looking to use the date a web page was published as part of academic referencing.
Step 1. In your browser open https://www.google.com/.
Step 2. Copy the url of the web page you want to get a publication date for.
Step 3. Paste this url into the search bar of the google.com page and search. The search should return a series of results.
Step 4. In the address bar of the results page go to the very end of the url text and paste &as_qdr=y15 and hit return.
This should update the results page with each link including a publication date.