Java Utililty Methods SQL Time Create

Calendar c = Calendar.getInstance();
c.setTime(getDateTime(dateTime));
int year = c.get(1);
return year;

Calendar c = Calendar.getInstance();
c.setTime(getDateTime(dateTime));
int year = c.get(c.YEAR);
return year;

Calendar firstCal = Calendar.getInstance(TimeZone.getDefault());
firstCal.setTime(firstDeparture);
Calendar secondCal = Calendar.getInstance(TimeZone.getDefault());
secondCal.setTime(thisDeparture);
secondCal.add(Calendar.HOUR_OF_DAY, 0 - firstCal.get(Calendar.HOUR_OF_DAY));
secondCal.add(Calendar.MINUTE, 0 - firstCal.get(Calendar.MINUTE));
secondCal.add(Calendar.SECOND, 0 - firstCal.get(Calendar.SECOND));
return new Time(secondCal.getTime().getTime());
...

long tm = 0;
String[] arr = t1.toString().split(":");
tm += Integer.parseInt(arr[2]);
tm += 60 * Integer.parseInt(arr[1]);
tm += 3600 * Integer.parseInt(arr[0]);
arr = t2.toString().split(":");
tm += Integer.parseInt(arr[2]);
tm += 60 * Integer.parseInt(arr[1]);
...

int secs = 0, mins = 0, hrs = 0;
Calendar calendar = Calendar.getInstance();
for (int i = 0; i < timeStrings.length; i++) {
    String dateString = timeStrings[i];
    Date date = new Date();
    try {
        date = (Date) df.parse(dateString);
    } catch (ParseException e) {
...

if (time != null) {
    Calendar c = Calendar.getInstance();
    c.setTimeInMillis(time.getTime());
    double hour = c.get(Calendar.HOUR_OF_DAY);
    double minuten = c.get(Calendar.MINUTE);
    double sekunden = c.get(Calendar.SECOND);
    double minutendecimal = minuten / 60;
    double sekundendecimal = sekunden / 3600;
...

return value.toString();

Calendar cal = Calendar.getInstance();
cal.setTime(t);
byte[] b = new byte[8];
b[0] = (byte) 0;
b[1] = (byte) (19 & 0xff);
b[2] = (byte) (70 & 0xff);
b[3] = (byte) (1 & 0xff);
b[4] = (byte) (1 & 0xff);
...

java.util.Calendar output = Calendar.getInstance();
output.setTimeInMillis(input.getTime());
return output;

return timeToInternal(time, UTC_ZONE);