java - jvm default timezone update after operating system timezone changes

Question

I have a jvm running on a windows machine.It displays the current time (including time zone information) using TimeZone.getDefault(). I changed my operating system from Eastern Time (US & Canada) to Central Time (US & Canada) and the time zone the jvm displays does not change accordingly. When I restart the jvm, the time zone of the jvm is updated. Is there a way to get the most recent time zone info from the operating system without restarting the jvm?

Thanks.

Possible duplicate of Java timezone change at runtime

mpromonet
– mpromonet

2015-11-06 09:22:07 +00:00
Commented Nov 6, 2015 at 9:22 — mpromonet
– mpromonet, Commented Nov 6, 2015 at 9:22

Orace · Accepted Answer · 2015-11-09 08:09:14Z

4

As you highlighted by your test, system time zone changes are not taken into account by the JVM at runtime.

This is referenced as a bug and it is still open.

edited Nov 9, 2015 at 8:09

answered Feb 25, 2015 at 10:32

Orace

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2 Comments

Anton Duzenko Over a year ago

That bug is marked as won't fix without explanation - any idea why?

Orace Over a year ago

@AntonDuzenko, the bug is 22 years old. Yep, they probably won't fix it. Maybe the idea of an event driven workaround has been implemented. I am outdated on the evolutions of Java anyway...

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