How long does it take to walk from Halifax Nova Scotia to Victoria British Columbia?

Depends on how fast you walk. Also, would you walk only, or would you jog, and hitch rides? If so, then you would have to calculate that into your formula.

Also, you may have to run in order to catch up on any rests you took, then again for the amount of time it took for you to calculate the above.

Try it, then let me know.