More inter-city trains have been added to the Waterford and Galway lines, with later departure times.
Irish Rail is urging regular commuters to double check their trains as its introduced a new timetable today.
It has come into effect today, and affects many routes around the country.
More inter-city trains have been added to the Waterford and Galway lines, with later departure times.
Irish Rail spokesperson, Barry Kenny, outlines some of the other changes.