CODEWITHSUNDEEP
android
S.M_Emamian
S.M_Emamian

Reputation: 17383

getting the wrong timezone android

i am using this function to get the current time on the real device(tested on Galaxy S4):

private String getCurrentTime(){
    TimeZone mtz = TimeZone.getTimeZone(TimeZone.getDefault().toString());
    Calendar calendar = Calendar.getInstance(mtz);
    String current_time = calendar.get(Calendar.HOUR_OF_DAY)+":"+calendar.get(Calendar.MINUTE)+":"+calendar.get(Calendar.SECOND);
    return current_time ;
}

but real time (for example) :

18:48:16

The return value of the function:

14:17:41

Automatic date & time and Automatic time zone on the phone has been checked !!

but this function works :

private String getCurrentTime(){
    TimeZone mtz = TimeZone.getTimeZone("GMT+04:30");
    Calendar calendar = Calendar.getInstance(mtz);
    String current_time = calendar.get(Calendar.HOUR_OF_DAY)+":"+calendar.get(Calendar.MINUTE)+":"+calendar.get(Calendar.SECOND);
    return current_time ;
}

Another question:

When I change the time on the phone, The return value of 2 previous function changes, How can I prevent this? In other words, How can I get real time (Without any internet connection)?

Upvotes: 0

Views: 431

Answers (1)

Alex Salauyou
Alex Salauyou

Reputation: 14348

In first sample you receive time in GMT because of toString conversion. To obtain your device timezone, just use:

  TimeZone mtz = TimeZone.getDefault();

Upvotes: 1

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