"Be sure to check out the posting by the SharePoint Team about a fix for SharePoint 2003 (WSS and Portal) to deal with the new Daylight Savings Time starting this spring.  More information can be found here:  http://blogs.msdn.com/sharepoint/archive/2007/01/15/sharepoint-products-and-technologies-and-dst-daylight-savings-time-update.aspx"