1 files changed, 26 insertions, 6 deletions
diff --git a/activesupport/lib/active_support/core_ext/date/calculations.rb b/activesupport/lib/active_support/core_ext/date/calculations.rb
index 439d380af7..c60e833441 100644
--- a/activesupport/lib/active_support/core_ext/date/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/date/calculations.rb
@@ -8,8 +8,6 @@ require 'active_support/core_ext/date_and_time/calculations'
 class Date
   include DateAndTime::Calculations
 
-  @beginning_of_week_default = nil
-
   class << self
     attr_accessor :beginning_of_week_default
 
@@ -53,28 +51,39 @@ class Date
   # Converts Date to a Time (or DateTime if necessary) with the time portion set to the beginning of the day (0:00)
   # and then subtracts the specified number of seconds.
   def ago(seconds)
-    to_time_in_current_zone.since(-seconds)
+    in_time_zone.since(-seconds)
   end
 
   # Converts Date to a Time (or DateTime if necessary) with the time portion set to the beginning of the day (0:00)
   # and then adds the specified number of seconds
   def since(seconds)
-    to_time_in_current_zone.since(seconds)
+    in_time_zone.since(seconds)
   end
   alias :in :since
 
   # Converts Date to a Time (or DateTime if necessary) with the time portion set to the beginning of the day (0:00)
   def beginning_of_day
-    to_time_in_current_zone
+    in_time_zone
   end
   alias :midnight :beginning_of_day
   alias :at_midnight :beginning_of_day
   alias :at_beginning_of_day :beginning_of_day
 
+  # Converts Date to a Time (or DateTime if necessary) with the time portion set to the middle of the day (12:00)
+  def middle_of_day
+    in_time_zone.middle_of_day
+  end
+  alias :midday :middle_of_day
+  alias :noon :middle_of_day
+  alias :at_midday :middle_of_day
+  alias :at_noon :middle_of_day
+  alias :at_middle_of_day :middle_of_day
+
   # Converts Date to a Time (or DateTime if necessary) with the time portion set to the end of the day (23:59:59)
   def end_of_day
-    to_time_in_current_zone.end_of_day
+    in_time_zone.end_of_day
   end
+  alias :at_end_of_day :end_of_day
 
   def plus_with_duration(other) #:nodoc:
     if ActiveSupport::Duration === other
@@ -120,4 +129,15 @@ class Date
       options.fetch(:day, day)
     )
   end
+  
+  # Allow Date to be compared with Time by converting to DateTime and relying on the <=> from there.
+  def compare_with_coercion(other)
+    if other.is_a?(Time)
+      self.to_datetime <=> other
+    else
+      compare_without_coercion(other)
+    end
+  end
+  alias_method :compare_without_coercion, :<=>
+  alias_method :<=>, :compare_with_coercion
 end