With Rational Application Developer installed you will find the needed file at
<RAD_INSTALLATION_FOLDER\plugins\com.ibm.ws.ast.st.utc_*
where the star indicates the version of UTC. There you will then find the IBMUTC.ear file which you then can install on your instance of WebSphere Application Server (or Tomcat or whatever application server).
Application will then be available at http://yourhost:yourport/UTC/