public RefreshFrequency withTimezone(String timezone) {
        setTimezone(timezone);
        return this;
    }
<p>
The timezone that you want the refresh schedule to use. The timezone ID must match a corresponding ID found on
<code>java.util.time.getAvailableIDs()</code>.
</p>

@param timezone
       The timezone that you want the refresh schedule to use. The timezone ID must match a corresponding ID
       found on <code>java.util.time.getAvailableIDs()</code>.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/RefreshFrequency.java