It’s very easy to activate travel days.
You can easily manage your travel days in your account on swisspass.ch. In the ‘Manage travelcards’ > ‘Leisure Pass’ > ‘Manage days’ area, activate your chosen day in just a few clicks and you will be ready to travel. In the same area, you can also deactivate travel dates which were previously activated – right up until the evening before at 11.59pm.