GMT时间转成UTC格式

public static void main(String[] args) {

Calendar lastDate = Calendar.getInstance();


DateFormat gmtFormat = new SimpleDateFormat();
TimeZone gmtTime = TimeZone.getTimeZone("UTC");

gmtFormat.setTimeZone(gmtTime);
Calendar calendar=java.util.Calendar.getInstance();


System.out.println("GMT Time: " +calendar.getTime());


System.out.println("UTC Time: " +gmtFormat.format(calendar.getTime()));


}