Imagine I have a Post Model.
and one record in the database will be:
23|title_here|content_here|2011-02-20 08:01:55.583222|2011-02-20 08:01:55.583
Try
Post.find_by_id(23).created_at.to_s
use attributes_before_type_cast
Post.find(23).attributes_before_type_cast["created_at"]
or
Post.find(23).read_attribute_before_type_cast("created_at")
Edit
You can call like this also:
Post.find(23).created_at_before_type_cast
according to Accessing attributes before they have been typecasted.