The date month names are unfortunately not translatable; however, you can change the date format to YYYY-MM-DD instead.

Step 1

Find this line (at the top of the template code):

{% assign SETTING_date_format = "%b %e, %Y" %}

Step 2

Replace it with:

{% assign SETTING_date_format = "%Y-%m-%e" %}

Note: You can use the following website to help you get the needed format: https://www.foragoodstrftime.com/

Step 3

Save the template.