I tried to edit the product special price date from admin with different
locale and it showing issue with date format.
It is working properly with
en_US locale. When I switch the locale to
nl_NL, the day and year changed each other.
For example : If I selected
01/01/2021 date in
nl_NL locale. Also, I can correct the date and save again with
nl_NL. It shows the same issue after save.