java - AlarmManager fires alarm in the wrong time if timezone is different than GMT(UTC) -

i know question asked billion times, , have tried make use of answers can't seem work expect to. i'm having trouble setting alarms via alarmmanager - seems working fine utc ( or gmt -whatever prefer), when comes other timezones alarms not fired @ right time. if set alarm @ 12:00 if timezone (+2) fires @ 14:00, 2 hrs late.

here's snippet:

    //todays date in seconds     long current  =   (system.currenttimemillis()/86400000)*86400;     long time =current + 43200;     alarmmanager.set(alarmmanager.rtc_wakeup, time*1000,                             operationbroadcast); 

the time on device 6:42 here's i've found in alarmmanagers "dump" file

rtc_wakeup #10: alarm{420f49b8 type 0 com.pocketenergy.androidbeta}     type=0 when=+7h17m37s418ms repeatinterval=0 count=0     operation=pendingintent{420f3b20: pendingintentrecord{420f4808 com.pocketenergy.androidbeta broadcastintent}} 

as far i've read on several places time should set in utc whatever timezone selected on actual device, have tried lot of different stuff calendar, example:

    //todays date in seconds     long current  =   (system.currenttimemillis()/86400000)*86400;     long time =current + 43200;     calendar calendar = calendar.getinstance();     calendar.settimeinmillis(time*1000);     timezone timezone= timezone.gettimezone("utc"); //also tried timezone.getdefault();     calendar.settimezone(timezone);     time = cal.gettimeinmillis();     alarmmanager.set(alarmmanager.rtc_wakeup, time,                             operationbroadcast); 

same outcome. ideas, anybody? :)

so, got work. here's code :)

        calendar calendar = calendar.getinstance();         calendar.settimeinmillis(system.currenttimemillis());         calendar.set(calendar.hour_of_day, 12);         calendar.set(calendar.minute, 0);         calendar.set(calendar.second, 0);         alarmmanager.set(alarmmanager.rtc_wakeup, time, operationbroadcast);