Java tutorial
import java.util.Calendar; import java.util.TimeZone; import javax.xml.bind.JAXBContext; import javax.xml.bind.Marshaller; import javax.xml.bind.annotation.XmlAccessType; import javax.xml.bind.annotation.XmlAccessorType; import javax.xml.bind.annotation.XmlRootElement; public class Main { public static void main(String[] args) throws Exception { JAXBContext jc = JAXBContext.newInstance(Root.class); Root root = new Root(); root.defaultTimeZone = Calendar.getInstance(); root.setTimeZone = Calendar.getInstance(); root.setTimeZone.setTimeZone(TimeZone.getTimeZone("GMT")); Marshaller marshaller = jc.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); marshaller.marshal(root, System.out); } @XmlRootElement @XmlAccessorType(XmlAccessType.FIELD) public static class Root { Calendar defaultTimeZone; Calendar setTimeZone; } }