Comet Calendar, The Official Event Calendar for UT Dallas en-us This week's academic calendar at UT Dallas Spring 2015 Last Day to Withdraw from a Graduate Course with an Automatic "W" Full Term Session Thursday, Apr 2 ]]> Spring 2015 "Signature Required" Period to Withdraw from UG Courses 2nd 8-week Session Tuesday, Mar 24 - Monday, Apr 20 ]]>