Java How to get time printed in IST

Question

I am able to get the time as well as timezone currently. but it always printed in

Wed May 23 11:01:08 GMT+05:30 2012

As TimeZone i am gett

Answer 1

Seems you have a wrong timezone setting. The following code will print 2012.05.23 AD at 11:30:20 IST

TimeZone.setDefault(TimeZone.getTimeZone("IST"));
SimpleDateFormat f = new SimpleDateFormat("yyyy.MM.dd G 'at' HH:mm:ss z");
System.out.println(f.format(new Date()));

However, if I use TimeZone.setDefault(TimeZone.getTimeZone("GMT+05:30"));

I'll get 2012.05.23 AD at 11:30:20 GMT+05:30.

What comes in, comes out identical.

Answer 2

You haven't shown where you're actually using the SimpleDateFormat. Here's a short but complete example which does show IST:

import java.text.*;
import java.util.*;

class Test {
    public static void main(String[] args) {
        SimpleDateFormat sd = new SimpleDateFormat(
            "yyyy.MM.dd G 'at' HH:mm:ss z");
        Date date = new Date();
        // TODO: Avoid using the abbreviations when fetching time zones.
        // Use the full Olson zone ID instead.
        sd.setTimeZone(TimeZone.getTimeZone("IST"));
        System.out.println(sd.format(date));
   }
}

Output on my machine:

2012.05.23 AD at 11:18:08 IST

Note that if TimeZone.getDefault() isn't showing "IST" then the issue may be:

• That the system can't actually identify your system time zone
• That your Java installation doesn't have full time zone information regarding i18n

Which version of Java are you using, and on what platform?