diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 6abd8ed..691353e 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -18,6 +18,8 @@ else
   puts "Using gem Rails version #{Rails::VERSION::STRING}"
 end
 
+Time.zone_default = Time.send!(:get_zone, 'UTC')
+
 require 'validates_timeliness'
 
 ActiveRecord::Base.establish_connection({:adapter => 'sqlite3', :database => ':memory:'})