Not familiar with nova myself, but yes format was removed in v4 Nova - Date Time Fields

Using a formatted Text field appears to be the easiest workaround. Personally I'd avoid making this change unless absolutely necessary.

But when it is

absolutely necessary

, which code/methods do you use ?

I define Date field as :

                    Date::make(__('Published at'), 'published_at')
                        ->displayUsing(fn($value) => $value ? DateConv::getFormattedDateTime($value) : '--')
                        ->sortable(),

where DateConv::getFormattedDateTime apply format j F, Y g:i A and label in index/view pages looks like 3 July, 2024 11:21 AM

but in details editor 07/23/2024 that is very inconvinient. In my country more used format is 'yyyy-mm-dd'. If there is a way to apply this format ?