How to get the current date and time of your timez

Question

I have my app hosted in a London Server. I am in Madrid, Spain. So the timezone is -2 hours.

How can I obtain the current date / time with my time zone.

Date curr_date = new Date(System.currentTimeMillis());

e.g.

Date curr_date = new Date(System.currentTimeMillis("MAD_TIMEZONE"));

With Joda-Time

DateTimeZone zone = DateTimeZone.forID("Europe/Madrid");
DateTime dt = new DateTime(zone);
int day = dt.getDayOfMonth();
int year = dt.getYear();
int month = dt.getMonthOfYear();
int hours = dt.getHourOfDay();
int minutes = dt.getMinuteOfHour();

Answer 1

Date is always UTC-based... or time-zone neutral, depending on how you want to view it. A Date only represents a point in time; it is independent of time zone, just a number of milliseconds since the Unix epoch. There's no notion of a "local instance of Date." Use Date in conjunction with Calendar and/or TimeZone.getDefault() to use a "local" time zone. Use TimeZone.getTimeZone("Europe/Madrid") to get the Madrid time zone.

... or use Joda Time, which tends to make the whole thing clearer, IMO. In Joda Time you'd use a DateTime value, which is an instant in time in a particular calendar system and time zone.

In Java 8 you'd use java.time.ZonedDateTime, which is the Java 8 equivalent of Joda Time's DateTime.

Answer 2

You would use JodaTime for that. Java.util.Date is very limited regarding TimeZone.

Answer 3

Here are some steps for finding Time for your zone:

Date now = new Date();

 DateFormat df = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");  
 df.setTimeZone(TimeZone.getTimeZone("Europe/London"));  

 System.out.println("timeZone.......-->>>>>>"+df.format(now));  

Answer 4

Check this may be helpfull. Work fine for me. Code also covered daylight savings

              TimeZone tz = TimeZone.getTimeZone("Asia/Shanghai");
    Calendar cal = Calendar.getInstance();      
    // If needed in hours rather than milliseconds
    int LocalOffSethrs = (int) ((cal.getTimeZone().getRawOffset()) *(2.77777778 /10000000));        
    int ChinaOffSethrs = (int) ((tz.getRawOffset()) *(2.77777778 /10000000));       
    int dts = cal.getTimeZone().getDSTSavings();
    System.out.println("Local Time Zone : " + cal.getTimeZone().getDisplayName());
    System.out.println("Local Day Light Time Saving : " + dts);
    System.out.println("China Time : " + tz.getRawOffset());
    System.out.println("Local Offset Time from GMT: " + LocalOffSethrs);
    System.out.println("China Offset Time from GMT: " + ChinaOffSethrs);    
    // Adjust to GMT
    cal.add(Calendar.MILLISECOND,-(cal.getTimeZone().getRawOffset()));  
    // Adjust to Daylight Savings
    cal.add(Calendar.MILLISECOND, - cal.getTimeZone().getDSTSavings());
    // Adjust to Offset
    cal.add(Calendar.MILLISECOND, tz.getRawOffset());       
    Date dt = new Date(cal.getTimeInMillis());              
    System.out.println("After adjusting offset Acctual China Time :" + dt);