diff --git a/spec/core/ClockSpec.js b/spec/core/ClockSpec.js
index b6ccec5d..0595ab05 100644
--- a/spec/core/ClockSpec.js
+++ b/spec/core/ClockSpec.js
@@ -356,4 +356,73 @@ describe("Clock (acceptance)", function() {
     expect(delayedFn1).toHaveBeenCalled();
     expect(delayedFn2).toHaveBeenCalled();  
   });
+
+  it("does not mock the Date object when installing without parameters", function() {
+     var delayedFunctionScheduler = new j$.DelayedFunctionScheduler(),
+      global = {Date: Date},
+      mockDate = new j$.MockDate(global),
+      clock = new j$.Clock({setTimeout: setTimeout}, delayedFunctionScheduler, mockDate);
+
+    clock.install();
+
+    expect(global.Date).toEqual(Date);
+
+    var now = global.Date.now();
+
+    clock.tick(50);
+
+    expect(global.Date.now() - now).not.toEqual(50);
+  });
+
+  it("mocks the Date object and sets it to current time when installing with true parameter", function() {
+    var delayedFunctionScheduler = new j$.DelayedFunctionScheduler(),
+      global = {Date: Date},
+      mockDate = new j$.MockDate(global),
+      clock = new j$.Clock({setTimeout: setTimeout}, delayedFunctionScheduler, mockDate);
+
+    clock.install(true);
+
+    var now = global.Date.now();
+
+    clock.tick(50);
+
+    expect(global.Date.now() - now).toEqual(50);
+
+    var timeoutDate = 0;
+    clock.setTimeout(function() {
+      timeoutDate = global.Date.now();
+    }, 100);
+
+    clock.tick(100);
+
+    expect(timeoutDate - now).toEqual(150);
+  });
+
+  it("mocks the Date object and sets it to a given time when installing with a Date parameter", function() {
+    var delayedFunctionScheduler = new j$.DelayedFunctionScheduler(),
+      global = {Date: Date},
+      mockDate = new j$.MockDate(global),
+      clock = new j$.Clock({setTimeout: setTimeout}, delayedFunctionScheduler, mockDate),
+      baseTime = new Date(2013, 9, 23);
+
+
+    clock.install(baseTime);
+
+    var now = global.Date.now();
+
+    expect(now).toEqual(baseTime.getTime());
+
+    clock.tick(50);
+
+    expect(global.Date.now()).toEqual(baseTime.getTime() + 50);
+
+    var timeoutDate = 0;
+    clock.setTimeout(function() {
+      timeoutDate = global.Date.now();
+    }, 100);
+
+    clock.tick(100);
+
+    expect(timeoutDate).toEqual(baseTime.getTime() + 150);
+  });
 });
diff --git a/spec/core/MockDateSpec.js b/spec/core/MockDateSpec.js
new file mode 100644
index 00000000..05bf86f9
--- /dev/null
+++ b/spec/core/MockDateSpec.js
@@ -0,0 +1,139 @@
+describe("FakeDate", function() {
+  it("does not fail if no global date is found", function() {
+    var fakeGlobal = {},
+      mockDate = new j$.MockDate(fakeGlobal);
+
+    mockDate.install();
+
+    fakeGlobal.Date = jasmine.createSpy("Date");
+
+    mockDate.tick(0);
+
+    expect(fakeGlobal.Date).not.toHaveBeenCalled();
+  });
+
+  it("does not replace global Date if it is not installed", function() {
+    var fakeDate = jasmine.createSpy("global Date"),
+      fakeGlobal = { Date: fakeDate },
+      mockDate = new j$.MockDate(fakeGlobal);
+
+    fakeDate.now = function(){};
+
+    expect(fakeDate).toEqual(fakeGlobal.Date);
+    mockDate.install();
+
+    expect(fakeDate).not.toEqual(fakeGlobal.Date);
+  });
+
+  it("replaces the global Date on uninstall", function() {
+    var fakeDate = jasmine.createSpy("global Date"),
+      fakeGlobal = { Date: fakeDate },
+      mockDate = new j$.MockDate(fakeGlobal);
+
+    fakeDate.now = function(){};
+
+    mockDate.install();
+    mockDate.uninstall();
+
+    expect(fakeDate).toEqual(fakeGlobal.Date);
+
+  });
+
+  it("takes the current time as the base when installing without parameters", function() {
+    var fakeDate = jasmine.createSpy("global Date"),
+      fakeGlobal = { Date: fakeDate },
+      mockDate = new j$.MockDate(fakeGlobal);
+
+    fakeGlobal.Date.prototype.getTime = function() {
+      return 1000;
+    };
+    fakeDate.now = function(){ return 1000; };
+
+    mockDate.install();
+
+    expect(new fakeGlobal.Date().getTime()).toEqual(1000);
+  });
+
+  it("can accept a date as time base when installing", function() {
+    var fakeGlobal = { Date: Date },
+      mockDate = new j$.MockDate(fakeGlobal),
+      baseDate = new Date(2013, 9, 23);
+
+    mockDate.install(baseDate);
+
+    expect(new fakeGlobal.Date().getTime()).toEqual(baseDate.getTime());
+  });
+
+
+  it("fakes current time when using Date.now()", function() {
+    var fakeGlobal = { Date: Date },
+      mockDate = new j$.MockDate(fakeGlobal),
+      baseDate = new Date(2013, 9, 23);
+
+    mockDate.install(baseDate);
+
+    expect(fakeGlobal.Date.now()).toEqual(baseDate.getTime());
+  });
+
+  it("makes time passes using tick", function() {
+    var fakeDate = jasmine.createSpy("global Date"),
+      fakeGlobal = { Date: fakeDate },
+      mockDate = new j$.MockDate(fakeGlobal);
+
+    fakeDate.now = function(){ return 1000; };
+
+    mockDate.install();
+
+    mockDate.tick(100);
+
+    expect(fakeGlobal.Date.now()).toEqual(1100);
+
+    mockDate.tick(1000);
+
+    expect(fakeGlobal.Date.now()).toEqual(2100);
+  });
+
+  it("allows to increase 0 milliseconds using tick", function() {
+    var fakeDate = jasmine.createSpy("global Date"),
+      fakeGlobal = { Date: fakeDate },
+      mockDate = new j$.MockDate(fakeGlobal);
+
+    fakeDate.now = function(){ return 1000; };
+
+    mockDate.install();
+
+    mockDate.tick(0);
+    expect(fakeGlobal.Date.now()).toEqual(1000);
+
+    mockDate.tick();
+    expect(fakeGlobal.Date.now()).toEqual(1000);
+  });
+
+  it("allows to create a Date in a different time than now", function() {
+    var fakeGlobal = { Date: Date },
+      mockDate = new j$.MockDate(fakeGlobal),
+      baseDate = new Date(2013, 9, 23, 0, 0, 0, 0);
+
+    mockDate.install(baseDate);
+
+    var otherDate = new fakeGlobal.Date(2013, 9, 23, 0, 0, 1, 0);
+
+    mockDate.tick(1000);
+
+    expect(fakeGlobal.Date.now()).toEqual(otherDate.getTime());
+  });
+
+  it("copies all Date properties to the mocked date", function() {
+    var fakeGlobal = { Date: Date },
+      mockDate = new j$.MockDate(fakeGlobal),
+      baseDate = new Date(2013, 9, 23, 0, 0, 0, 0);
+
+    mockDate.install(baseDate);
+
+    var otherDate = new fakeGlobal.Date();
+
+    expect(otherDate).toEqual(jasmine.any(Date));
+
+    expect(fakeGlobal.Date.UTC(2013, 9, 23)).toEqual(Date.UTC(2013, 9, 23));
+  });
+});
diff --git a/src/core/Clock.js b/src/core/Clock.js
index 69832506..c05f2a97 100644
--- a/src/core/Clock.js
+++ b/src/core/Clock.js
@@ -1,5 +1,5 @@
 getJasmineRequireObj().Clock = function() {
-  function Clock(global, delayedFunctionScheduler) {
+  function Clock(global, delayedFunctionScheduler, date) {
     var self = this,
       realTimingFunctions = {
         setTimeout: global.setTimeout,
@@ -16,15 +16,24 @@ getJasmineRequireObj().Clock = function() {
       installed = false,
       timer;
 
-    self.install = function() {
+
+    self.install = function(mockDate) {
       replace(global, fakeTimingFunctions);
       timer = fakeTimingFunctions;
       installed = true;
+
+      if (date && mockDate) {
+        date.install(mockDate);
+      }
     };
 
     self.uninstall = function() {
       delayedFunctionScheduler.reset();
+      if (date) {
+        date.uninstall();
+      }
       replace(global, realTimingFunctions);
+
       timer = realTimingFunctions;
       installed = false;
     };
@@ -59,6 +68,9 @@ getJasmineRequireObj().Clock = function() {
 
     self.tick = function(millis) {
       if (installed) {
+        if (date) {
+          date.tick(millis);
+        }
         delayedFunctionScheduler.tick(millis);
       } else {
         throw new Error('Mock clock is not installed, use jasmine.clock().install()');
diff --git a/src/core/Env.js b/src/core/Env.js
index 1312cb2c..fc2fd27f 100644
--- a/src/core/Env.js
+++ b/src/core/Env.js
@@ -11,7 +11,7 @@ getJasmineRequireObj().Env = function(j$) {
 
     var realSetTimeout = j$.getGlobal().setTimeout;
     var realClearTimeout = j$.getGlobal().clearTimeout;
-    this.clock = new j$.Clock(global, new j$.DelayedFunctionScheduler());
+    this.clock = new j$.Clock(global, new j$.DelayedFunctionScheduler(), new j$.MockDate(global));
 
     var runnableLookupTable = {};
 
diff --git a/src/core/MockDate.js b/src/core/MockDate.js
new file mode 100644
index 00000000..294579bb
--- /dev/null
+++ b/src/core/MockDate.js
@@ -0,0 +1,62 @@
+getJasmineRequireObj().MockDate = function() {
+  function MockDate(global) {
+    var self = this;
+    var currentTime = 0;
+
+    if (!global || !global.Date) {
+      self.install = function() {};
+      self.tick = function() {};
+      self.uninstall = function() {};
+      return self;
+    }
+
+    var GlobalDate = global.Date;
+
+    self.install = function(mockDate) {
+      if (mockDate instanceof Date) {
+        currentTime = mockDate.getTime();
+      } else {
+        currentTime = GlobalDate.now();
+      }
+
+      global.Date = FakeDate;
+    };
+
+    self.tick = function(millis) {
+      millis = millis || 0;
+      currentTime = currentTime + millis;
+    };
+
+    self.uninstall = function() {
+      currentTime = 0;
+      global.Date = GlobalDate;
+    };
+
+    createDateProperties();
+
+    return self;
+
+    function FakeDate() {
+      if (arguments.length === 0) {
+        return new GlobalDate(currentTime);
+      } else {
+        return new GlobalDate(arguments[0], arguments[1], arguments[2],
+          arguments[3], arguments[4], arguments[5], arguments[6]);
+      }
+    }
+
+    function createDateProperties() {
+
+      FakeDate.now = function() {
+        return currentTime;
+      };
+
+      FakeDate.toSource = GlobalDate.toSource;
+      FakeDate.toString = GlobalDate.toString;
+      FakeDate.parse = GlobalDate.parse;
+      FakeDate.UTC = GlobalDate.UTC;
+    }
+	}
+
+  return MockDate;
+};
diff --git a/src/core/requireCore.js b/src/core/requireCore.js
index 5803a5bc..528489b6 100644
--- a/src/core/requireCore.js
+++ b/src/core/requireCore.js
@@ -14,6 +14,7 @@ getJasmineRequireObj().core = function(jRequire) {
   j$.util = jRequire.util();
   j$.Any = jRequire.Any();
   j$.CallTracker = jRequire.CallTracker();
+  j$.MockDate = jRequire.MockDate();
   j$.Clock = jRequire.Clock();
   j$.DelayedFunctionScheduler = jRequire.DelayedFunctionScheduler();
   j$.Env = jRequire.Env(j$);