Manipulating time and date

Hi i have the following class which returns infomation regarding a users recent activity;

  public List<DocumentUpdates> GetUpdates(int intUserID)
{
List listUpdates = new List();

SqlDatabase sqlDatabase = new SqlDatabase();
SqlDataReader sqlDataReader = null;

try
{

sqlDatabase.Open();

sqlDatabase.ClearParameters();

sqlDatabase.AddInputParameter("@UserID", intUserID);

sqlDataReader = sqlDatabase.ExecuteReader("UpdateActions_SelectByUserID");

while (sqlDataReader.Read())
{
Updates item = ...