How to calculate time of different countries

[Vikas Kapoor]

Hello Friends,

I am looking for a way to fetch time of different countries.
I am in India.I need to fetch the china current time.
I tried below code but in output i get my local time only.

TimeZone tz = TimeZone.getTimeZone("CST");
Calendar calendar = Calendar.getInstance(tz, Locale.TRADITIONAL_CHINESE);
System.out.println("China Time:" + calendar.getTime());

How do i correct it to get china local time?
Thanks.
[ August 04, 2008: Message edited by: Vishal Pandya ]

[Kuladip Yadav]

You may Check this

For china UTC/GMT +8 hours
So fallowing code may help you

   Date d = new Date();    
      
       long  utc = d.getTime() + (d.getTimezoneOffset() * 60000); 
      
        // create new Date object for different city
        // using supplied offset
       Date nd = new Date(utc + (long)(3600000*(+8.0)));   //for chaina UTC +8.0
       System.out.println(nd.toString());  

[Vikas Kapoor]

When i created an instance using the code pasted by me above, i got local time
But when i printed the calendar object by calendar.toString() method i got proper timings. Is this strange?

Actually, i want to start a scheduler at 00:00:00 AM china time and my application may run in India/US.I tried the following.

TimeZone gmtTZ = TimeZone.getTimeZone("GMT");
Calendar calendarR1 = Calendar.getInstance(gmtTZ);
calendarR1.add(Calendar.HOUR_OF_DAY, 8);// Calendar is set to chinese time
calendarR1.set(Calendar.HOUR_OF_DAY,23 - calendarR1.get(Calendar.HOUR_OF_DAY));
calendarR1.set(Calendar.MINUTE, 59 - calendarR1.get(Calendar.MINUTE));
calendarR1.set(Calendar.SECOND, (59 - calendarR1.get(Calendar.SECOND)) + 1);

Is there any better way exists?

[Carey Evans]

Date.toString() always formats its date using the default timezone. You can use DateFormat to use different timezones:

final TimeZone calcutta = TimeZone.getTimeZone("Asia/Calcutta");
final TimeZone shanghai = TimeZone.getTimeZone("Asia/Shanghai");
final Date now = new Date();
final DateFormat format = DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL);
format.setTimeZone(calcutta);
System.out.println(format.format(now));
format.setTimeZone(shanghai);
System.out.println(format.format(now));