Java Utililty Methods Timestamp Create

Format format = new SimpleDateFormat("dd.MM.yyyy HH:mm:ss,SSS ");
double current = System.currentTimeMillis();
String timestamp = format.format(current);
return timestamp;

Date date = new Date();
DateFormat df = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
return df.format(date);

SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
return "[".concat(sdf.format(new Date())).concat("]");

Date date = new Date();
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
format.setTimeZone(TimeZone.getTimeZone("UTC"));
Calendar c = Calendar.getInstance();
TimeZone z = c.getTimeZone();
int offset = z.getRawOffset();
if (z.inDaylightTime(date)) {
    offset = offset + z.getDSTSavings();
...

return new Timestamp(time.getTimeInMillis());

SimpleDateFormat formatter = new SimpleDateFormat("yy.MM.dd - HH:mm");
return formatter.format(date);

SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss");
String cs = formatter.format(date);
return cs;

SimpleDateFormat format = new SimpleDateFormat(timePattern2);
return format.format(date);

TimeStampFormat.format(date);
return null;

SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd.HH.mm.ss");
dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
return dateFormat.format(date);