assuming its a MySQL db then I'd suggest you import the data into Excel using an ODBC connection to the MySQL DB and make use of the MySQL date/time functions
MySQL uses the UNIX centric way iof storing date tiem informatiuon (the number of clicks since an arbitary base date of (IIRC) 01 Jan 1970
SELECT Date_format(Date_time, '%d-%m-%y') AS someDate FROM Teste.pavg_10m;
http://i792.photobucket.com/albums/y.../miniDGR-0.jpg I've taken part in the Distinguished Gentlemans ride, and although I enjoyed the day the main focus was to raise awareness of Prostrate Cancer and raise some funds for research. Many thanks to the many sponsors who helped me raise some £360 towards this cause, its much appreciated and rather humbling.