public void setCreationDateTime(java.util.Date creationDateTime) {
        this.creationDateTime = creationDateTime;
    }
<p>
The date and time (in Unix format) that the recommender was created.
</p>

@param creationDateTime
       The date and time (in Unix format) that the recommender was created.
aws-java-sdk-personalize/src/main/java/com/amazonaws/services/personalize/model/Recommender.java