In the knowladge base it say the following on inporting dates;
Date – Date when the order was placed. Must be in the MM/DD/YYYY format (e.g., 12/25/2009).
Date added – Date when the product was added. Must be in the MM/DD/YYYY format (e.g., 12/25/2009).
But I’ve added a date in the features and I want to inport these feature. So I added a few products with features filled and exported them to use a template (as you do).
The date shown in the features field is as follows;
Date: D[1078790400]
This is in fact 03/09/2004 and I suspect it’s some sort of minuites since earth began 
I’ve tried just importing as suggested for product date but that doesn’t work. So what I need to know is how to reproduce the format above or be able to just add a date even if just a year ?