JSONObject obj = new JSONObject(result);
            if (obj.getString("status").equals("success")) {
                 JSONArray arr = obj.getJSONArray("response");
                 UserNotificationTime jour;
                 for (int i = 0; i < arr.length(); i++) {
                    obj = arr.getJSONObject(i);
                    jour = new UserNotificationTime();
                    jour.set_breakfast_time(obj.getString("breakfast_time"));
                    j_pref_bkTime = jour.get_breakfast_time();
                    j_editor.putString("j_bktime", j_pref_bkTime);
                    j_editor.commit();
               }
            } else {
                Toast.makeText(getApplicationContext(),
                        obj.getString("response"), Toast.LENGTH_SHORT)
                        .show();
            }

j_pref_bkTime = prefs.getString("j_bktime", "OFF"); // get json time from the shared preference


           int hours = new Time(System.currentTimeMillis()).getHours();
           int minute = new Time(System.currentTimeMillis()).getMinutes();

           String time = hours + ":" + minute;

           //  splits json time (hour and minute to comapare with current time)
            StringTokenizer tokens_bk = new StringTokenizer(j_pref_bkTime,
                    ":");
            String first_bk = tokens_bk.nextToken();
            String second_bk = tokens_bk.nextToken();
            String final_bktime = first_bk.trim() + ":" + second_bk.trim();

           if (time.trim().equals(final_bktime.trim())) {

             // perform some action here but it call when our app open and do some
                into this but i want to call this code also when application is
                close  or open means how to compare this code-condition to call
                any time this body when current time match to json time.

          }