Daylight Savings Updation in java.util.TimeZone

Question

Hi,
I used the java.util.TimeZone for converting the local time to GMT time. I was getting the correct time conversion details. With respect to the Daylight savings for certain timezones, the util library was providing me correct details. However, certain countries have the option of changing the Daylight savings in future. So, in that case, how the Daylight Saving changes will be updated to the java.util?

Answer 1

883413 wrote:
I used the java.util.TimeZone for converting the local time to GMT time. I was getting the correct time conversion details. With respect to the Daylight savings for certain timezones, the util library was providing me correct details. However, certain countries have the option of changing the Daylight savings in future. So, in that case, how the Daylight Saving changes will be updated to the java.util?By keeping your Java version up-to-date. One of the things you get when you download the SDK/JRE is an equivalent of the Unix TZ database. Most timezone changes are agreed years in advance, although I believe that DST changes require only 1 year's notice.
There is also a [url http://www.oracle.com/technetwork/java/javase/tzupdater-readme-136440.html]Timezone Updater Tool if you just want to update TZ info in isolation, but I've never used it myself.
The above applies to virtually all timezones you're likely to use. For very obscure ones, or for building your own, you may have to follow the instructions 833545 provided; but I'd advise against it for anything except testing.
Winston
Edited by: YoungWinston on Sep 6, 2011 10:31 AM
Too slow, as usual :-).