new Date.now() should be in local timezone.

tests/corelib/date_time_test.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // Dart test program for Date.
 
 class DateTest {
   // Tests if the time moves eventually forward.
   static void testNow() {
     var t1 = new Date.now();
     bool timeMovedForward = false;
     for (int i = 0; i < 1000000; i++) {
       var t2 = new Date.now();
       if (t1.value < t2.value) {
         timeMovedForward = true;
         break;
       }
     }
     Expect.equals(true, timeMovedForward);
+    Expect.isFalse(t1.isUtc());
   }
 
   static void testValue() {
     var dt1 = new Date.now();
     var value = dt1.value;
     var dt2 = new Date.fromEpoch(value);
     Expect.equals(value, dt2.value);
   }
 
   static void testFarAwayDates() {
@@ skipping 506 matching lines @@
     testDateStrings();
     testEquivalentYears();
     testFarAwayDates();
     testWeekday();
   }
 }
 
 main() {
   DateTest.testMain();
 }