diff --git a/datetime/dayofweek.c b/datetime/dayofweek.c
new file mode 100644
index 0000000..1598ac0
--- /dev/null
+++ b/datetime/dayofweek.c
@@ -0,0 +1,15 @@
+#include <windows.h>
+#include <wchar.h>
+
+int wmain(void) {
+
+    SYSTEMTIME st = {0};
+
+    wchar_t *dn[] = { L"Sunday", L"Monday", L"Tuesday", 
+        L"Wednesday", L"Thursday", L"Friday", L"Saturday" };
+
+    GetLocalTime(&st);
+    wprintf(L"Today is %ls\n", dn[st.wDayOfWeek]);
+
+    return 0;
+}