Here you can find the source of parseRFC822Date(String date)
public static Date parseRFC822Date(String date)
//package com.java2s; //License from project: Open Source License import android.util.Log; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; public class Main { private static final String TAG = "DateUtils"; private static final String[] RFC822DATES = { "dd MMM yy HH:mm:ss Z", }; private static ThreadLocal<SimpleDateFormat> RFC822Formatter = new ThreadLocal<SimpleDateFormat>() { @Override// w w w . j ava2 s . c om protected SimpleDateFormat initialValue() { return new SimpleDateFormat(RFC822DATES[0], Locale.US); } }; public static Date parseRFC822Date(String date) { Date result = null; if (date.contains("PDT")) { date = date.replace("PDT", "PST8PDT"); } if (date.contains(",")) { // Remove day of the week date = date.substring(date.indexOf(",") + 1).trim(); } SimpleDateFormat format = RFC822Formatter.get(); for (int i = 0; i < RFC822DATES.length; i++) { try { format.applyPattern(RFC822DATES[i]); result = format.parse(date); break; } catch (ParseException e) { e.printStackTrace(); } } if (result == null) { Log.e(TAG, "Unable to parse feed date correctly"); } return result; } }