3 files changed, 30 insertions, 5 deletions
diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
index 391447140d..6ac105bde1 100644
--- a/activesupport/CHANGELOG
+++ b/activesupport/CHANGELOG
@@ -1,3 +1,5 @@
+* Added Fixnum#ago/until, Fixnum#since/from_now #450 [bitsweat]
+
 * Added that Inflector now accepts Symbols and Classes by calling .to_s on the word supplied
 
 * Added time unit extensions to Fixnum that'll return the period in seconds, like 2.days + 4.hours.
 \ No newline at end of file
diff --git a/activesupport/lib/core_ext/fixnum_ext.rb b/activesupport/lib/core_ext/fixnum_ext.rb
index c7b875c021..14944df3bb 100644
--- a/activesupport/lib/core_ext/fixnum_ext.rb
+++ b/activesupport/lib/core_ext/fixnum_ext.rb
@@ -33,4 +33,20 @@ class Fixnum
     self * 365.days
   end
   alias :year :years
-end
-\ No newline at end of file
+
+  # Reads best without arguments:  10.minutes.ago
+  def ago(time = Time.now)
+    time - self
+  end
+
+  # Reads best with argument:  10.minutes.until(time)
+  alias :until :ago
+
+  # Reads best with argument:  10.minutes.since(time)
+  def since(time = Time.now)
+    time + self
+  end
+
+  # Reads best without arguments:  10.minutes.from_now
+  alias :from_now :since
+end
diff --git a/activesupport/test/core_ext/fixnum_ext_test.rb b/activesupport/test/core_ext/fixnum_ext_test.rb
index 4014ad07d0..12ef69596d 100644
--- a/activesupport/test/core_ext/fixnum_ext_test.rb
+++ b/activesupport/test/core_ext/fixnum_ext_test.rb
@@ -2,15 +2,22 @@ require 'test/unit'
 require File.dirname(__FILE__) + '/../../lib/core_ext/fixnum_ext'
 
 class FixnumExtTest < Test::Unit::TestCase
-  def test_time_units
-    expected = {
+  def setup
+    @now = Time.now
+    @seconds = {
       1.minute   => 60,
       10.minutes => 600,
       1.hour + 15.minutes => 4500,
       2.days + 4.hours + 30.minutes => 189000,
       5.years + 1.month + 1.fortnight => 161481600
     }
+  end
 
-    expected.each { |actual, expected| assert_equal expected, actual }
+  def test_time_units
+    @seconds.each do |actual, expected|
+      assert_equal expected, actual
+      assert_equal expected.since(@now),  @now + actual
+      assert_equal expected.until(@now),  @now - actual
+    end
   end
-end
-\ No newline at end of file
+end