Rename Date to DateTime.

samples/solar/web/solar.dart

 // Copyright (c) 2012, 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.
 
 /**
  * A solar system visualization.
  */
 
 library solar;
 
@@ skipping 101 matching lines @@
     jupiter.addPlanet(new PlanetaryBody(
         this, "Ganymede", "gray", 5.3 * f, 1070 * h, 7.154 * g));
     jupiter.addPlanet(new PlanetaryBody(
         this, "Callisto", "gray", 4.8 * f, 1882 * h, 16.689 * g));
 
     // Start the animation loop.
     requestRedraw();
   }
 
   void draw(num _) {
-    num time = new Date.now().millisecondsSinceEpoch;
+    num time = new DateTime.now().millisecondsSinceEpoch;
 
     if (renderTime != null) {
       showFps((1000 / (time - renderTime)).round());
     }
 
     renderTime = time;
 
     var context = canvas.context2d;
 
     drawBackground(context);
@@ skipping 134 matching lines @@
     } else {
       num angle = solarSystem.renderTime * orbitSpeed;
 
       return new Point(
         orbitRadius * cos(angle) + x,
         orbitRadius * sin(angle) + y);
     }
   }
 
 }