public OperationSummary withLastUpdatedDate(java.util.Date lastUpdatedDate) {
        setLastUpdatedDate(lastUpdatedDate);
        return this;
    }
<p>
The date when the last change was made in Unix time format and Coordinated Universal Time (UTC).
</p>

@param lastUpdatedDate
       The date when the last change was made in Unix time format and Coordinated Universal Time (UTC).
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-route53/src/main/java/com/amazonaws/services/route53domains/model/OperationSummary.java