Date time with TimeZone

DateTimeTest.java

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.TimeZone;
import java.text.ParsePosition;
import java.text.DateFormat;
import java.util.Date;


public class DateTimeTest
{
	public static Calendar parseBookingDate(String bookingDate)
	{
		Calendar cal = Calendar.getInstance();
		ParsePosition parsePos = new ParsePosition(0);
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
		sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
		Date date = sdf.parse(bookingDate, parsePos);
		if(date == null){
			System.err.println("Error: " + parsePos);
			return null; // new Date(); Current date time ??
		}
		cal.setTime(date);
		int zoneIndex = parsePos.getIndex();
		if(bookingDate.length() > zoneIndex){
			char zoneChar = bookingDate.charAt(zoneIndex);
			if(zoneChar == '-' || zoneChar == '+'){
				cal.setTimeZone(TimeZone.getTimeZone("GMT" + 
					bookingDate.substring(zoneIndex)));
			}
		}
		return cal;
	}

	public static String formatDateTime(Calendar cal)
	{
		Date date = cal.getTime();
		DateFormat dateFormat = DateFormat
			.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL);
		dateFormat.setTimeZone(cal.getTimeZone());
		return dateFormat.format(date);
	}

	public static void main(String[] args)
	{
		String inputDate = "2014-02-17T15:12:34-05:00";
		Calendar parsedDate = parseBookingDate(inputDate);
		if(parsedDate != null){
			System.out.println("Booking Date: " + formatDateTime(parsedDate));
		}
	}
}

DateTimeTestAlt.java

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.TimeZone;
import java.text.ParsePosition;
import java.text.DateFormat;
import java.util.Date;


public class DateTimeTestAlt
{
	public static Calendar parseBookingDate(String bookingDate)
	{
		Calendar cal = Calendar.getInstance();
		ParsePosition parsePos = new ParsePosition(0);
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
		sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
		Date date = sdf.parse(bookingDate, parsePos);
		if(date == null){
			System.err.println("Error: " + parsePos);
			return null; // new Date(); Current date time ??
		}
		cal.setTime(date);
		int zoneIndex = parsePos.getIndex();
		if(bookingDate.length() > zoneIndex){
			char zoneChar = bookingDate.charAt(zoneIndex);
			if(zoneChar == '-' || zoneChar == '+'){
				cal.setTimeZone(TimeZone.getTimeZone("GMT" + 
					bookingDate.substring(zoneIndex)));
			}
		}
		return cal;
	}

	public static String formatDateTime(Date date, TimeZone timeZone)
	{
		DateFormat dateFormat = DateFormat
			.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL);
		dateFormat.setTimeZone(timeZone);
		return dateFormat.format(date);
	}

	public static void main(String[] args)
	{
		String inputDate = "2014-02-17T15:12:34-05:00";
		Calendar parsedDate = parseBookingDate(inputDate);
		if(parsedDate != null){
			System.out.println("Booking Date: " + 
				formatDateTime(parsedDate.getTime(), parsedDate.getTimeZone()));
		}
	}
}