Apparently pfDateTimepicker was dropped from the current PatternFly release in favor of a recommendation to use the angular-ui-boostrap Datepicker component (see http://angular-ui.github.io/bootstrap/versioned-docs/1.0.0/). While this meets the functional requirements for selecting dates, the styling of this component is inconsistent with the PatternFly design here: http://www.patternfly.org/pattern-library/forms-and-controls/datepicker/#design
The angular-ui-bootstrap component should be restyled to be more consistent with the PatternFly design.