diff --git a/dlls/jscript/date.c b/dlls/jscript/date.c
index c0264c26bb8..96d366c6245 100644
--- a/dlls/jscript/date.c
+++ b/dlls/jscript/date.c
@@ -2483,3 +2483,28 @@ HRESULT variant_date_to_number(double date, double *ret)
                      make_time(st.wHour, st.wMinute, st.wSecond, st.wMilliseconds));
     return S_OK;
 }
+
+HRESULT variant_date_to_string(script_ctx_t *ctx, double date, jsstr_t **r)
+{
+    DateInstance *date_obj;
+    jsval_t val;
+    double time;
+    HRESULT hres;
+
+    hres = variant_date_to_number(date, &time);
+    if(FAILED(hres))
+        return hres;
+
+    hres = create_date(ctx, NULL, time, &date_obj);
+    if(FAILED(hres))
+        return hres;
+
+    hres = dateobj_to_string(date_obj, &val);
+    jsdisp_release(&date_obj->dispex);
+    if(FAILED(hres))
+        return hres;
+
+    assert(is_string(val));
+    *r = get_string(val);
+    return hres;
+}
diff --git a/dlls/jscript/jscript.h b/dlls/jscript/jscript.h
index 7cc194b84b9..b590e1a7441 100644
--- a/dlls/jscript/jscript.h
+++ b/dlls/jscript/jscript.h
@@ -361,6 +361,7 @@ HRESULT jsval_strict_equal(jsval_t,jsval_t,BOOL*) DECLSPEC_HIDDEN;
 
 HRESULT variant_change_type(script_ctx_t*,VARIANT*,VARIANT*,VARTYPE) DECLSPEC_HIDDEN;
 HRESULT variant_date_to_number(double,double*) DECLSPEC_HIDDEN;
+HRESULT variant_date_to_string(script_ctx_t*,double,jsstr_t**) DECLSPEC_HIDDEN;
 
 HRESULT decode_source(WCHAR*) DECLSPEC_HIDDEN;
 
diff --git a/dlls/jscript/jsutils.c b/dlls/jscript/jsutils.c
index a77c70ad01d..bfecdc75c4a 100644
--- a/dlls/jscript/jsutils.c
+++ b/dlls/jscript/jsutils.c
@@ -773,9 +773,17 @@ HRESULT to_string(script_ctx_t *ctx, jsval_t val, jsstr_t **str)
     case JSV_BOOL:
         *str = jsstr_alloc(get_bool(val) ? L"true" : L"false");
         break;
-    default:
-        FIXME("unsupported %s\n", debugstr_jsval(val));
-        return E_NOTIMPL;
+    default: {
+        const VARIANT *v = get_variant(val);
+        switch(V_VT(v))
+        {
+        case VT_DATE:
+            return variant_date_to_string(ctx, V_DATE(v), str);
+        default:
+            FIXME("unsupported %s\n", debugstr_variant(v));
+            return E_NOTIMPL;
+        }
+    }
     }
 
     return *str ? S_OK : E_OUTOFMEMORY;
diff --git a/dlls/jscript/tests/lang.js b/dlls/jscript/tests/lang.js
index d6973099b7c..7bcb121131e 100644
--- a/dlls/jscript/tests/lang.js
+++ b/dlls/jscript/tests/lang.js
@@ -200,14 +200,17 @@ ok(tmp === 3, "tmp = " + tmp);
     ok(getVT(+d) === "VT_R8", "vt +v_date(0) = " + getVT(d));
     ok(getVT(d / d) === "VT_I4", "vt v_date(0) / v_date(0) = " + getVT(d / d));
     ok((+d) === e, "+v_date(0) = " + (+d) + " expected " + e);
+    ok(("" + d).match(/^Sat Dec 30 00:00:00 .* 1899$/) != null, "+v_date(0) = " + d);
 
     d = v_date(2.5);
     e = Date.parse("Mon Jan 1 12:00:00 1900");
     ok((+d) === e, "+v_date(2.5) = " + (+d));
+    ok(("" + d).match(/^Mon Jan 1 12:00:00 .* 1900$/) != null, "+v_date(2.5) = " + d);
 
     d = v_date(42091);
     e = Date.parse("Sat Mar 28 00:00:00 2015");
     ok((+d) === e, "+v_date(2015y) = " + (+d) + " expected " + e);
+    ok(("" + d).match(/^Sat Mar 28 00:00:00 .* 2015$/) != null, "+v_date(2015y) = " + d);
 })();
 
 function testRecFunc(x) {