Using a ValueObject does "double" casting?

[parijke]

I have a VO, that is essentially an extend from CarbonImmutable. In the model we have a cast from
'date_of_entry' => 'datetime',

When the field is typed as CarbonImmutable, this works fine, but when it is the DateOfEntry, it fails with

Could not cast date 2024-07-07 00:58:40` into a `App\ValueObject\DateOfEntry` using formats: Y-m-d\TH:i:s, Y-m-d

And I do not understand why?

[rubenvanassche]

You probably should give the cast another date input format since 2024-07-07 00:58:40 isn't correct as Y-m-d\TH:i:s or Y-m-d