public void setUnhealthySince(java.util.Date unhealthySince) {
        this.unhealthySince = unhealthySince;
    }
<p>
The timestamp when the status last changed to <code>UNHEALHY</code>.
</p>

@param unhealthySince
       The timestamp when the status last changed to <code>UNHEALHY</code>.
aws-java-sdk-customerprofiles/src/main/java/com/amazonaws/services/customerprofiles/model/DestinationSummary.java