public void setServiceGraphStartTime(java.util.Date serviceGraphStartTime) {
        this.serviceGraphStartTime = serviceGraphStartTime;
    }
<p>
The time, in Unix seconds, at which the service graph started.
</p>

@param serviceGraphStartTime
       The time, in Unix seconds, at which the service graph started.
aws-java-sdk-xray/src/main/java/com/amazonaws/services/xray/model/GetInsightImpactGraphResult.java