Here's another interesting development: I set the timezone settings for this forum and the settings page shows the correct time, and when I uncheck [i]Automatically detect when my timezone is in DST[/i] I see that [i]My timezone is currently in DST[/i] is unchecked. I made sure to poke around all over the place, since the Guild Wars 2 Guru forums sometimes takes a while to update the time when I change settings.
But the Guild Wars 2 Guru forums are still showing my time at 1 hour ahead of where it should be and, when I uncheck [i]Automatically detect when my timezone is in DST[/i] I see that [i]My timezone is currently in DST[/i] is checked.
This tells me that my computer configuration is definitely not the problem. If it was, then I would be seeing the same problem on both forums. It also says that the problem is being caused by the configuration differences between here and the Guild Wars 2 Guru forums.
I am one of the users who reported this issue on Guildwarsguru.com ([url=http://www.guildwars2guru.com/topic/40718-dst-detection-doesnt-work-for-new-zealand/page__gopid__1611960#entry1611960]the thread I reported this to[/url])
[url=http://imageshack.us/content_round.php?page=done&l=img820/2206/timesettings.png]Here is a screenshot of the error in action, along with my date and time settings[/url]
Please tell me exactly how I have misconfigured my computer.