Fields themselves don't keep track of timestamps. But they do track the revision of the entity (in your case a node). The node revision table does keep track of timestamps, so you can go through that way to keep track of what was changed. Of course, that implies that you turn on revisioning for that content type, or at least those nodes.
Nancy
From: Dani Matielo I created several text fields with infinite values, so each month, the author will edit the content, add a text box on the fields that need to be updated, and save again. The content type will have a history of the updates.
My question is - does the fields get associate with the time when they were saved? For example, if I want to collect only the entries on that field that were entered during a certain period of time, is this possible?
If not - does anyone have another suggestion of how to do this?