[Webkit-unassigned] [Bug 142531] [Win] 17 different JSC tests started to fail in DST

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=142531

--- Comment #6 from Brent Fulgham <bfulgham at webkit.org> ---
(In reply to comment #5)
> Well the current calculation is wrong right now.  I wish there were an easy
> way to test this without waiting 6 months to see how things change.  We
> should test this in Arizona, too :)

The current calculation is failing because 'GetTimeZoneInformation' is returning TIME_ZONE_ID_DAYLIGHT, instead of TIME_ZONE_ID_STANDARD.

The date that DST ends varies from year-to-year. Apparently this didn't get updated on Windows, or maybe the function I'm calling isn't smart enough to account for this.

According to MSDN, there is another function (in Vista and newer) that should do the right thing. I'll have to 'soft link' to it, since we don't know what OS we are running on, but that might fix it.

I'll give it a try and see.

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