When displaying a chart from a query, a query with X=date, Y=count shows the date correctly when in Line view. When switched to Timeline view, the 3 letter abbreviation for the month is incorrect (in this case 1 month ahead). Attached is a zip file with a screenshot and the data used to create the chart. In the screenshot, the view on the left is correct and the view on the right is incorrect.
Fixed with https://github.com/phpmyadmin/phpmyadmin/commit/1e21d7b0dad85dac0e1ca8c6852510e2d178e2dc