几行代码而已，百度上各种代码都有，各种格式，我还是写自己的吧。
import java.util.Date;
public class Main
{
public static void main(String[] args)
{
// TODO Auto-generated method stub
Date time_now = new Date();
@SuppressWarnings("deprecation")
long time_code = Date.UTC(
time_now.getYear(),
time_now.getMonth(),
time_now.getDate(),
time_now.getHours(),
time_now.getMinutes(),
time_now.getSeconds());
Date time_utc = new Date(time_code);
System.out.println(time_utc.toString());
}
}
