convert custom locale date time to gmt in android -


i trying convert date time format created on locale time on android device gmt . unable right value .also datetime generated local time on android.how can convert exact gmt unixtime ?

         string datetime="02-02-2016 8:28 pm";   simpledateformat format = new simpledateformat("dd-mm-yyyy hh:mm a");             format.settimezone(timezone.gettimezone("gmt"));             date date = null;             try {                 date = format.parse(datetime);                 system.out.println("date ->" + date);             } catch (exception e) {                 e.printstacktrace();             }             long unixtime = date.gettime() / 1000; 

try{                     simpledateformat sourceformat = new simpledateformat("yyyy-mm-dd hh:mm:ss");                     sourceformat.settimezone(timezone.gettimezone("utc"));                     log.v("current time", ""+ sourceformat.format(new date()));                      date parsed = sourceformat.parse(sourceformat.format(new date())); // => date in utc                       timezone tz = timezone.gettimezone("america/los_angeles");                     simpledateformat destformat = new simpledateformat("yyyy-mm-dd hh:mm:ss");                     destformat.settimezone(tz);  //                  string result = destformat.format(parsed);                     string result = destformat.format(sourceformat.parse(sourceformat.format(new date())));                      log.e("result", ""+result);   //                  2015-11-26 02:07:59                                      simpledateformat utcformat = new simpledateformat("yyyy-mm-dd hh:mm:ss");                     simpledateformat severformat = new simpledateformat("yyyy-mm-dd hh:mm:ss");                     simpledateformat localformat = new simpledateformat("yyyy-mm-dd hh:mm:ss");                      utcformat.settimezone(timezone.gettimezone("utc"));                      timezone tz1 = timezone.gettimezone("america/los_angeles");                     severformat.settimezone(tz1);                      localformat.settimezone(timezone.getdefault());                      date serverdate = severformat.parse(result);                     date utcdate =  utcformat.parse(utcformat.format(serverdate));                      string localdate = localformat.format(utcdate);                     log.e("localdate", ""+localdate);                 }catch(parseexception e){                     e.printstacktrace();                 } catch (java.text.parseexception e) {                     // todo auto-generated catch block                     e.printstacktrace();                 } 

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