diff --git a/app/controllers/timelog_controller.rb b/app/controllers/timelog_controller.rb
index e234848d03..726c69d5b3 100644
--- a/app/controllers/timelog_controller.rb
+++ b/app/controllers/timelog_controller.rb
@@ -260,8 +260,8 @@ private
     end
     
     @from, @to = @to, @from if @from && @to && @from > @to
-    @from ||= (TimeEntry.minimum(:spent_on, :include => :project, :conditions => Project.allowed_to_condition(User.current, :view_time_entries)) || Date.today) - 1
-    @to   ||= (TimeEntry.maximum(:spent_on, :include => :project, :conditions => Project.allowed_to_condition(User.current, :view_time_entries)) || Date.today)
+    @from ||= (TimeEntry.earilest_date_for_project || Date.today) - 1
+    @to   ||= (TimeEntry.latest_date_for_project || Date.today)
   end
 
   def load_available_criterias
diff --git a/app/models/time_entry.rb b/app/models/time_entry.rb
index 73f39f949e..56801a4ca8 100644
--- a/app/models/time_entry.rb
+++ b/app/models/time_entry.rb
@@ -81,4 +81,12 @@ class TimeEntry < ActiveRecord::Base
       yield
     end
   end
+
+  def self.earilest_date_for_project
+    TimeEntry.minimum(:spent_on, :include => :project, :conditions => Project.allowed_to_condition(User.current, :view_time_entries))
+  end
+
+  def self.latest_date_for_project
+    TimeEntry.maximum(:spent_on, :include => :project, :conditions => Project.allowed_to_condition(User.current, :view_time_entries))
+  end
 end
diff --git a/test/unit/time_entry_test.rb b/test/unit/time_entry_test.rb
index 3c135510ac..a541fc41fa 100644
--- a/test/unit/time_entry_test.rb
+++ b/test/unit/time_entry_test.rb
@@ -48,4 +48,19 @@ class TimeEntryTest < ActiveSupport::TestCase
   def test_hours_should_default_to_nil
     assert_nil TimeEntry.new.hours
   end
+
+  context "#earilest_date_for_project" do
+    should "return the lowest spent_on value that is visible to the current user" do
+      User.current = nil
+      assert_equal "2007-03-12", TimeEntry.earilest_date_for_project.to_s
+    end
+  end
+
+  context "#latest_date_for_project" do
+    should "return the highest spent_on value that is visible to the current user" do
+      User.current = nil
+      assert_equal "2007-04-22", TimeEntry.latest_date_for_project.to_s
+    end
+  end
+  
 end