Change submission date to dd/mm/yyyy format

submission date format changes suddenly with no reason. please see screenshot

i need them to be date, month, year in order to sort them Z-A in google sheets

now its in the format: month, date, year

it is confusing

You can format the date in your spreadsheet settings. Please see the image below:

You can change your spreadsheet date to dd/mm/yyyy and once you revisit your spreadsheet link the format will be like that.