public void setTrainingStartTime(java.util.Date trainingStartTime) {
        this.trainingStartTime = trainingStartTime;
    }
<p>
The date and time that the training job started.
</p>

@param trainingStartTime
       The date and time that the training job started.
aws-java-sdk-sagemaker/src/main/java/com/amazonaws/services/sagemaker/model/HyperParameterTrainingJobSummary.java