I can only find one afternoon cancellation - the 1724?
...and the 1924, 2054, 2124, 2254... and that's ignoring those that are in the Saturday (or weekday, depending on what they were actually trying to run today) 'interim' timetable but didn't appear to be scheduled at all today, such as the 1654.
I only see one train every 2 hours that ran after 1624 from PBO. Northbound looks similar from about 1800.
(perhaps I should have said 'early evening' rather than 'late afternoon' - the difference seems rather ambiguous in summer days
