Clock

Instructions

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.

Implementation Notes

To satisfy the requirement in the instructions about clocks being equal, values of your Clock type need to work with the == operator. This means that if your New function returns a pointer rather than a value, your clocks will probably not work with ==.

While the time.Time type in the standard library doesn't necessarily need to be used as a basis for your Clock type, it might help to look at how constructors there (Date and Now) return values rather than pointers. Note also how most time.Time methods have value receivers rather than pointer receivers.

For some useful guidelines on when to use a value receiver or a pointer receiver see Go Wiki: Receiver Type

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Source

Pairing session with Erin Drummond