Hello Colombo01
From a foreign country, you can also call the SBB Contact Center with this number:
+41 51 225 78 56 (24/7, waiting times may occur).
If you have a Saver Day Pass, no confirmation of the train schedule will be available on the ticket, unless you reserved seats, because you can use it in every train during the day of validity. Check the timetable again shortly before your departure.
Kind Regards
Danhiel