diff --git a/winpr/include/winpr/timezone.h b/winpr/include/winpr/timezone.h
index e77375133..14480d025 100644
--- a/winpr/include/winpr/timezone.h
+++ b/winpr/include/winpr/timezone.h
@@ -62,7 +62,11 @@ WINPR_API BOOL TzSpecificLocalTimeToSystemTime(LPTIME_ZONE_INFORMATION lpTimeZon
 
 #endif
 
-#if !defined(_WIN32) || (defined(_WIN32) && (_WIN32_WINNT < 0x0501)) /* Windows Vista */
+/*
+ * GetDynamicTimeZoneInformation is provided by the SDK if _WIN32_WINNT >= 0x0600 in SDKs above 7.1A
+ * and incorrectly if _WIN32_WINNT >= 0x0501 in older SDKs
+ */
+#if !defined(_WIN32) || (defined(_WIN32) && (defined(NTDDI_WIN8) && _WIN32_WINNT < 0x0600 || !defined(NTDDI_WIN8) && _WIN32_WINNT < 0x0501)) /* Windows Vista */
 
 WINPR_API DWORD GetDynamicTimeZoneInformation(PDYNAMIC_TIME_ZONE_INFORMATION pTimeZoneInformation);
 WINPR_API BOOL SetDynamicTimeZoneInformation(const DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation);
diff --git a/winpr/libwinpr/timezone/timezone.c b/winpr/libwinpr/timezone/timezone.c
index 40c7bbc8f..d910eaa39 100644
--- a/winpr/libwinpr/timezone/timezone.c
+++ b/winpr/libwinpr/timezone/timezone.c
@@ -59,7 +59,11 @@ BOOL TzSpecificLocalTimeToSystemTime(LPTIME_ZONE_INFORMATION lpTimeZoneInformati
 
 #endif
 
-#if !defined(_WIN32) || (defined(_WIN32) && (_WIN32_WINNT < 0x0501)) /* Windows Vista */
+/*
+ * GetDynamicTimeZoneInformation is provided by the SDK if _WIN32_WINNT >= 0x0600 in SDKs above 7.1A
+ * and incorrectly if _WIN32_WINNT >= 0x0501 in older SDKs
+ */
+#if !defined(_WIN32) || (defined(_WIN32) && (defined(NTDDI_WIN8) && _WIN32_WINNT < 0x0600 || !defined(NTDDI_WIN8) && _WIN32_WINNT < 0x0501)) /* Windows Vista */
 
 DWORD GetDynamicTimeZoneInformation(PDYNAMIC_TIME_ZONE_INFORMATION pTimeZoneInformation)
 {