diff --git a/activesupport/lib/active_support/core_ext/date/calculations.rb b/activesupport/lib/active_support/core_ext/date/calculations.rb
index 43d70c70130531309ebed956e1ae5bedcfe76191..7f94da015b65517b34ec22bbddad56c37f629e3d 100644
--- a/activesupport/lib/active_support/core_ext/date/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/date/calculations.rb
@@ -1,7 +1,7 @@
 module ActiveSupport #:nodoc:
   module CoreExtensions #:nodoc:
     module Date #:nodoc:
-      # Enables the use of time calculations within Time itself
+      # Enables the use of time calculations within Date itself
       module Calculations
         def self.included(base) #:nodoc:
           base.extend ClassMethods