Hello Grossmeister77
Good day.
With a Saver Day Pass (if this is what you mean by day saving ticket) you are not eligible for the Day Upgrade ticket if you are not having the (Swiss) Half Fare Card in addition.
Without the SHFC, you could purchase point-to-point class upgrades, however.
The price for the Saver Day Pass is dynamic; the higher the demand for that day, the higher its cost.
Kind regards,
Roland
