I was having the same problem, so this is how I fixed the date problem in comments and posts. Got to advanced settings, date/time conversion, select “(x) Use strftime instead of date and replace formats with the predefined formats for each language.
Depending on the mode selected, additional customizations of the theme may be needed.”.
Now go to the flag’s box and Edit the languages you are using. Delete Date Format and Time Format.
English Disable Edit Delete
Português Disable Edit Default
It should work fine now.