Create localtime_to_universaltime.c

datetime/localtime_to_universaltime.c

@@ -0,0 +1,32 @@
+#include <windows.h>
+#include <wchar.h>
+
+int wmain(void) { 
+
+    SYSTEMTIME lt = {0};
+    GetLocalTime(&lt);
+
+    TIME_ZONE_INFORMATION tzi = {0};
+    GetTimeZoneInformation(&tzi);
+
+    SYSTEMTIME utm = {0};
+
+    int r = TzSpecificLocalTimeToSystemTime(&tzi, &lt, &utm);
+    
+    if (r == 0) {
+
+        wprintf(L"Failed to convert local time to system time %d\n)", 
+            GetLastError());
+        return 1;
+    }
+
+    wprintf(L"Date: %d/%d/%d\n", lt.wMonth, lt.wDay, lt.wYear);
+
+    wprintf(L"The local time is: %02d:%02d:%02d\n", 
+        lt.wHour, lt.wMinute, lt.wSecond);
+
+    wprintf(L"The universal time is: %02d:%02d:%02d\n", 
+        utm.wHour, utm.wMinute, utm.wSecond);
+
+    return 0;
+}