2 files changed, 22 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/date/calculations.rb b/activesupport/lib/active_support/core_ext/date/calculations.rb
index 8a7eb6bc6b..7fe4161fb4 100644
--- a/activesupport/lib/active_support/core_ext/date/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/date/calculations.rb
@@ -202,6 +202,17 @@ class Date
     acts_like?(:time) ? result.change(:hour => 0) : result
   end
 
+  # Short-hand for months_ago(3)
+  def prev_quarter
+    months_ago(3)
+  end
+  alias_method :last_quarter, :prev_quarter
+
+  # Short-hand for months_since(3)
+  def next_quarter
+    months_since(3)
+  end
+
   # Returns a new Date/DateTime representing the start of the month (1st of the month; DateTime objects will have time set to 0:00)
   def beginning_of_month
     acts_like?(:time) ? change(:day => 1, :hour => 0) : change(:day => 1)
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb
index 92b8417150..28c8b53b78 100644
--- a/activesupport/lib/active_support/core_ext/time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/time/calculations.rb
@@ -186,6 +186,17 @@ class Time
     months_since(1)
   end
 
+  # Short-hand for months_ago(3)
+  def prev_quarter
+    months_ago(3)
+  end
+  alias_method :last_quarter, :prev_quarter
+
+  # Short-hand for months_since(3)
+  def next_quarter
+    months_since(3)
+  end
+
   # Returns number of days to start of this week, week starts on start_day (default is :monday).
   def days_to_week_start(start_day = :monday)
     start_day_number = DAYS_INTO_WEEK[start_day]