In my android program, I have a spinner that allows the user to select different times. Each selection is processed with Joda time to subtract the minutes. It works fine for minutes 0 to 59 and 61 and greater. However, when 60 minutes is subtracted, the time is not updated, and the original time is shown.

How do I get Joda time to subtract 60 minutes?

Spinner:

public class MyOnItemSelectedListener implements OnItemSelectedListener {



            public void onItemSelected(AdapterView<?> parent, View view, int pos,
                    long id1) {


                    String mins =     parent.getItemAtPosition(pos).toString();

                    int intmins=0;

                    // process user's selection of alert time
                    if(mins.equals("5 minutes")){intmins = 5;}
                    if(mins.equals("10 minutes")){intmins = 10;}
                    if(mins.equals("20 minutes")){intmins = 20;}
                    if(mins.equals("30 minutes")){intmins = 30;}
                    if(mins.equals("40 minutes")){intmins = 40;}
                    if(mins.equals("50 minutes")){intmins = 50;}
                      if(mins.equals("60 minutes")){intmins = 60;}
                        if(mins.equals("120 minutes")){intmins = 120;}

                    String stringMinutes=""+intmins;
                    setAlarm(intmins, stringMinutes);



                } else {



            }

            public void onNothingSelected(AdapterView parent) {
                mLocationDisplay.setText(" " + location);
            }
        }




            public void setAlarm(int intmins, String mins) {
                // based alarm time on start time of event. TODO get info from database.

                String currentDate;
                SimpleDateFormat myFormat = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
                Date date1 = null;
                DateTime dt;
                currentDate = eventdate + " " + startTimeMilitary;// startTimeMilitary;

            try {
                    date1 = myFormat.parse(currentDate);


                } catch (ParseException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

                dt = new DateTime(date1);
                long dateInMillis = dt.getMillis();
                String sDateInMillis = Long.toString(dateInMillis);

                // subtract the selected time from the event's start time

                String   newAlertTime = subtractTime(dt, intmins);

                 newAlertTime = subtractTime(dt, intmins);
//......}