Setting a Calendar Object to ZERO

I currently display the current time. I would also like to start a plus count when a particular event occurs. The plus
count would start at zero when it is triggered. I would like to display the plus count in seconds.

Here is my code which doesn't work:
Start the Plus Count by setting a calendar Object to Zero.
{
private Calendar pluscount;
// I want to start the clock at zero and have it start counting up. I then will parse the fields to determine plus count.
        pluscount = plusCount.getInstance();
        pluscount.set(Calendar.HOUR, 0);
        pluscount.set(Calendar.MINUTE, 0);
        pluscount.set(Calendar.SECOND, 0);
        pluscount.getTime();
       irigTimeProd.fireEvent(pluscount);
}

    public void irigTimeUpdate(com.slrsc.optics.oics.events.IRIGEvent event)
    {
        myTimeStamp = event.getTimestamp();
        myPlusCount = event.getPlusTime();  // get plus count

//Convert to seconds (plus Count is displayed in seconds)
        if (myPlusCount.get(Calendar.HOUR) > 0)
        {
            hourValue = 0;
            hourValue = myPlusCount.get(Calendar.HOUR);
            hourValue = hourValue * 3600;
           
        }
        if (myPlusCount.get(Calendar.MINUTE) > 0)
        {
            minuteValue = myPlusCount.get(Calendar.MINUTE);
            minuteValue = minuteValue * 60;
        }
        else if (myPlusCount.get(Calendar.MINUTE) == 0)
        {
            minuteValue = 0;
        }
        event.getPlusTime().getTime();
        minuteValueHolder = hourValue + minuteValue + myPlusCount.get(Calendar.SECOND);
        myPlusCountString = ("+" + minuteValueHolder);
        myTimeString = (myTimeStamp.get(Calendar.DAY_OF_YEAR) + ":" + myTimeStamp.get(Calendar.HOUR_OF_DAY)  ":"       +     myTimeStamp.get(Calendar.MINUTE) + ":" + myTimeStamp.get(Calendar.SECOND) );
        irigDataMessage(myTimeString);
        plusCountDataMessage(myPlusCountString);
    }