Is possible to do Kilkenny(Ireland)and Belfast(North Ireland) only in one day???

Question

I mean...

I leave early morning,I go to Kilkenny and I come back to Dublin in the night...

The same for Belfast...

Is possible???

Or Kilkenny and Belfast need more days to visit???

Answer 1

No it isn't, you'll spend about 4 hours just travelling from Kilkenny to Belfast alone. Pick either Belfast or Kilkenny, and remember than roads in the Republic of Ireland are not built for large volumes of high-speed traffic, like they are in the UK or the US.  

Answer 2

I would stay overnight, it could be done there and back in a day but you wouldn't have much time before setting off back on the return journey and you'd be very tired. Not worth it.