[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 #1 from peavo at outlook.com ---
This might be wrong, but I get zero stress test failures, with the diff below.
It seems the documentation for GetTimeZoneInformation can be interpreted as the DST bias is already included in the bias member.
Maybe someone can confirm?


Index: DateMath.cpp
===================================================================
--- DateMath.cpp        (revisjon 181279)
+++ DateMath.cpp        (arbeidskopi)
@@ -369,11 +369,7 @@
     if (rc == TIME_ZONE_ID_INVALID)
         return 0;

-    int32_t bias = 0;
-    if (rc == TIME_ZONE_ID_DAYLIGHT)
-        bias = timeZoneInformation.Bias + timeZoneInformation.DaylightBias;
-    else if (rc == TIME_ZONE_ID_STANDARD || rc == TIME_ZONE_ID_UNKNOWN)
-        bias = timeZoneInformation.Bias + timeZoneInformation.StandardBias;
+    int32_t bias = timeZoneInformation.Bias;

     return -bias * 60 * 1000;
 #else

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