Get date in current timezone in java

Question

I have been searching over the net from past few hours to get the datetime in my system timezone.

When I use calendar.getTimezone.getDefaultName it always returns m

Answer 1

      private String receivedFormat = "yyyy-MM-dd'T'HH:mm:ss", expectedFormat = "dd-MM-yyyy HH:mm:ss"; //Globall variables

        //Write these three lines in your Test Class and below 2 methods

        String dateString = "2018-08-14T07:00:00:00";
        String returnString = correctDateFormat(dateString, receivedFormat, expectedFormat);
        String result = getTimeInSelectedLocale(returnString);
    Log.i("Ayaz", "Date: " +result);



     /**
         * @param receivedDate
         * @param givenFormat
         * @param expectedFormat
         * @return returns date time in expected format
         */
        public static String correctDateFormat(String receivedDate, String givenFormat, String expectedFormat) {
            if (TextUtils.isEmpty(receivedDate)) {
                return "";
            }
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat(givenFormat);
            Date newDate = null;
            try {
                newDate = simpleDateFormat.parse(receivedDate);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            simpleDateFormat = new SimpleDateFormat(expectedFormat);
            receivedDate = simpleDateFormat.format(newDate);
            return receivedDate;
        }



        /**
         * @param dateString
         * @return passed string date in different locale, My Db is in IST so I an converting IST in different locale
         */
        public  String getTimeInSelectedLocale(String dateString) {
            if (TextUtils.isEmpty(dateString)) {
                return dateString;
            }
            SimpleDateFormat sdf = new SimpleDateFormat(expectedFormat);
            sdf.setTimeZone(TimeZone.getTimeZone("Asia/Kolkata")); //We want Indian time to change in different locale, so this line is compulsory, you can replace with your country
            Date date1 = null;
            try {
                date1 = sdf.parse(dateString);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            //below this line -> TimeZone.getTimeZone(TimeZone.getDefault().getID(), will return current locale for example for India "Asia/Kolkata" for UAE "Asia/Dubai"
            sdf.setTimeZone(TimeZone.getTimeZone(TimeZone.getDefault().getID())); //This line chooses current local in which you want time
            String localDate = sdf.format(date1);
            return localDate;
        }

//I am converting the IST time "2018-08-14T07:00:00:00"  into UAE(Duabai) "14-08-2018 05:30:00" and other countries