nodejs
diff --git a/‎lib/util.js‎
Lines changed: 5 additions & 1 deletion b/‎lib/util.js‎
Lines changed: 5 additions & 1 deletion
diff --git a/‎test/parallel/test-util-inspect.js‎
Lines changed: 2 additions & 1 deletion b/‎test/parallel/test-util-inspect.js‎
Lines changed: 2 additions & 1 deletion
@@ -348,7 +348,11 @@ function formatValue(ctx, value, recurseTimes) {
       return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
     }
     if (isDate(value)) {
-      return ctx.stylize(Date.prototype.toISOString.call(value), 'date');
+      if (Number.isNaN(value.getTime())) {
+        return ctx.stylize(value.toString(), 'date');
+      } else {
+        return ctx.stylize(Date.prototype.toISOString.call(value), 'date');
+      }
     }
     if (isError(value)) {
       return formatError(value);
 
@@ -12,8 +12,9 @@ assert.equal(util.inspect(function() {}), '[Function]');
 assert.equal(util.inspect(undefined), 'undefined');
 assert.equal(util.inspect(null), 'null');
 assert.equal(util.inspect(/foo(bar\n)?/gi), '/foo(bar\\n)?/gi');
-assert.equal(util.inspect(new Date('Sun, 14 Feb 2010 11:48:40 GMT')),
+assert.strictEqual(util.inspect(new Date('Sun, 14 Feb 2010 11:48:40 GMT')),
   new Date('2010-02-14T12:48:40+01:00').toISOString());
+assert.strictEqual(util.inspect(new Date('')), (new Date('')).toString());
 
 assert.equal(util.inspect('\n\u0001'), "'\\n\\u0001'");
Original file line number	Diff line number	Diff line change
@@ -348,7 +348,11 @@ function formatValue(ctx, value, recurseTimes) {
348	348	return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
349	349	}
350	350	if (isDate(value)) {
351		- return ctx.stylize(Date.prototype.toISOString.call(value), 'date');
	351	+ if (Number.isNaN(value.getTime())) {
	352	+ return ctx.stylize(value.toString(), 'date');
	353	+ } else {
	354	+ return ctx.stylize(Date.prototype.toISOString.call(value), 'date');
	355	+ }
352	356	}
353	357	if (isError(value)) {
354	358	return formatError(value);