Time-Freezer ##How to install: $ gem install time-freezer ##How to use: Time.freeze Time.now #Wed Aug 17 16:36:34 +0300 2011 sleep(2); Time.now #Wed Aug 17 16:36:34 +0300 2011 Time.travel(Time.now+60) Time.now #Wed Aug 17 16:37:34 +0300 2011 Time.reset