A gem providing "time travel" and "time freezing" capabilities, making it dead simple to test time-dependent code. It provides a unified method to mock Time.now, Date.today, and DateTime.now in a single call.

Delorean lets you travel in time with Ruby by mocking Time.now

A Rails plugin that makes it easy to write tests or specs for time-dependent code

Righting wrongs in your test suite with time travel!

TimeWarp is a ruby library for manipulating times in automated tests.

Warp time zones in your tests.