# Clock Implement a clock that handles times without dates. You should be able to add and subtract minutes to it. Two clocks that represent the same time should be equal to each other. ## Source Pairing session with Erin Drummond [https://twitter.com/ebdrummond](https://twitter.com/ebdrummond) ## Submitting Incomplete Solutions It's possible to submit an incomplete solution so you can see how others have completed the exercise.