HelloSimpleDateFormat4Main.java

package hello;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

public class HelloSimpleDateFormat4Main {

	public static void main(String[] args) throws Exception {
		// Fri May 13 01:18:07 UTC 2016

		String s = "Fri May 13 01:18:07 UTC 2016";

		SimpleDateFormat formatter = new SimpleDateFormat(
				"EEE MMM dd HH:mm:ss z yyyy", new Locale("en"));

		SimpleDateFormat formatter2 = new SimpleDateFormat(
				"yyyy-MM-dd HH:mm:ss z", new Locale("en"));
		{
			Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
			formatter2.setTimeZone(cal.getTimeZone());
		}
		{
			Date d = formatter.parse(s);
			System.out.println(d);
			System.out.println(formatter2.format(d));
		}

	}

}

実行結果

Fri May 13 10:18:07 JST 2016
2016-05-13 01:18:07 UTC