ScotRail's reduced timetable began on Monday, with more than 700 services cut across the country.
From today, the last train from Edinburgh to Glasgow will be at 10.15pm instead of 11.45pm, with services in the evenings expected to cause the most damage for commuters.
A dispute with the Aslef union, whose members are refusing to make themselves available for overtime, has led to a third of daily services being halted.