Updating Time from NIST to Pacific Daylight Time

Question

I'm a newbie to Java and I'm trying to finish my final project in my Java class.
Our project consists of setting up an ODBC and downloading data from a website and saving it to a text file that includes the current time from NIST.
The specs ask for:
Obtain the current exact time from the NIST (National Institute of Standards and Technology) by decoding the time from this web page or this web page and subtract 7 hours from it.
b.     Open a sequential file and call it "APRYYMMDD.txt" where YY is year, MM is month, DD is the current day.
c.     Write the first record as the exact time UTC obtained above.
d.     Write the second record as the exact time obtained above minus 7 hours and formatted as "MM/dd/yyy kk:mm " (see SimpleDateFormat class).
Which I have done, but my problem is coming forth when I write the code to update the time. When I subtract 7:00 hours from the GMT, the time is off by two hours, when I subtract 14:00 it is correct.
If anyone can help me, there are Duke dollars available.
Here is my code:
� public static void Phase3(String mstrODBC, String mstrTable)
��� {
������� RandomAccessFile raf = null;
������� java.util.Date CurDate = null;
������� String Curtime = inetBank.getURL("http://128.138.140.44:13/");
������� SimpleDateFormat df = new SimpleDateFormat("yy-MM-dd hh:mm:ss");
������� String AvgApr = null;
�
������� SimpleDateFormat pf = new SimpleDateFormat("MM/dd/yyyy kk:mm");
�
������� try{
�
�������� CurDate =� df.parse(Curtime.substring(8,25));
�
�������� // Creates a text file if no such file is there
�������� // If file exists deletes all its data and then rewrites in it
�������� raf = new RandomAccessFile("APR" + justNumbers(Curtime.substring(8,16),"-","") + ".txt","rw");
�������� raf.setLength(0);
�������� raf.seek(0);
�������� raf.writeBytes(Curtime);
�
������� pf.setTimeZone(TimeZone.getTimeZone("GMT-14:00")); // new code
�
�������� raf.writeBytes("Pacific Daylight Time = " + pf.format(CurDate) +"\r"); //new code

Answer 1

One more try:
    public static void Phase3(String mstrODBC, String mstrTable)
        RandomAccessFile raf = null;
        java.util.Date CurDate = null;
        String Curtime = inetBank.getURL("http://128.138.140.44:13/");
        SimpleDateFormat df = new SimpleDateFormat("yy-MM-dd hh:mm:ss");
        String AvgApr = null;
        SimpleDateFormat pf = new SimpleDateFormat("MM/dd/yyyy kk:mm");
        try{
         CurDate =  df.parse(Curtime.substring(8,25));
         // Creates a text file if no such file is there
         // If file exists deletes all its data and then rewrites in it
         raf = new RandomAccessFile("APR" + justNumbers(Curtime.substring(8,16),"-","") + ".txt","rw");
         raf.setLength(0);
         raf.seek(0);
         raf.writeBytes(Curtime);
         //GMT-12:00 gives a time which is less than 12 hours of GMT time.
         // NIST time is 5 hours more than GMT. So, (5+7) total 12 subtracted to
         // get the desired time.
         pf.setTimeZone(TimeZone.getTimeZone("GMT-5:00"));
         raf.writeBytes("Pacific Daylight Time = " + pf.format(CurDate) +"\r");