Creation and modification info for all records is now stored in MySQL's datetime format, rather than the date format we'd been using. The datetime format is "YYYY-MM-DD HH:MM:SS" instead of just "YYYY-MM-DD."
The simple date format had been sufficient for our needs, but it did make it difficult to know the true order in which records were added within a given day. Now that we have an RSS feed, however, the precise time is more important.
— posted by B on February 7th, 2004