Is it possible to add more than one date in a single date field in django?
How can a user do this if one wants to add?
This isn't really an appropriate question for django-developers. If you're looking for help using Django, you should be asking on django-users.
However, even if you do this, you're not going to get many answers, because this sort of structure isn't something that relational databases do (at least, not without using vendor-specific extensions). There isn't anything builtin to Django to support "list" types, other than the many-to-one relation between two models.