Fix timezone creation on Windows

gmittert · gmittert · commit 308020ddb7b0 · 2019-09-18T16:21:41.000-07:00
Windows returns the bias in minutes, but CoreFoundation expects the
offset in seconds.
diff --git a/CoreFoundation/NumberDate.subproj/CFTimeZone.c b/CoreFoundation/NumberDate.subproj/CFTimeZone.c
@@ -182,7 +182,7 @@ static void __CFTimeZoneGetOffset(CFStringRef timezone, int32_t *offset) {
 
     cbData = sizeof(tziInfo);
     if (RegQueryValueExW(hKey, L"TZI", NULL, NULL, (LPBYTE)&tziInfo, &cbData) == ERROR_SUCCESS)
-        *offset = tziInfo.Bias;
+        *offset = tziInfo.Bias * 60; // Bias is in minutes, CF uses seconds for its offset
 
     RegCloseKey(hKey);
 }

Original file line number	Diff line number	Diff line change
`@@ -182,7 +182,7 @@ static void __CFTimeZoneGetOffset(CFStringRef timezone, int32_t *offset) {`
`182`	`182`
`183`	`183`	`cbData = sizeof(tziInfo);`
`184`	`184`	`if (RegQueryValueExW(hKey, L"TZI", NULL, NULL, (LPBYTE)&tziInfo, &cbData) == ERROR_SUCCESS)`
`185`		`- *offset = tziInfo.Bias;`
	`185`	`+ offset = tziInfo.Bias 60; // Bias is in minutes, CF uses seconds for its offset`
`186`	`186`
`187`	`187`	`RegCloseKey(hKey);`
`188`	`188`	`}`