public void setStatusChangedAt(java.util.Date statusChangedAt) {
        this.statusChangedAt = statusChangedAt;
    }
<p>
The timestamp when the status was changed (<code>1479816991.349</code>).
</p>

@param statusChangedAt
       The timestamp when the status was changed (<code>1479816991.349</code>).
aws-java-sdk-lightsail/src/main/java/com/amazonaws/services/lightsail/model/Operation.java