You decide what day you want to leave on (Friday after 19.01, Saturday or Sunday) and you return when you want on the Frinday (after 19.01), Saturday or Sunday of the same weekend.
In addition, you can return from a station other than the one where your outward journey ended, as long as you mention this when you're buying your ticket. (only possible for Weekend tickets purchased in a station and on the train). You don't need to do this if the returnstation in question is one of the nine seaside stations.
You decide what day you want to leave on (Friday after 19.01, Saturday or Sunday) and you return when you want on the Frinday (after 19.01), Saturday or Sunday of the same weekend.
In addition, you can return from a station other than the one where your outward journey ended, as long as you mention this when you're buying your ticket. (only possible for Weekend tickets purchased in a station and on the train). You don't need to do this if the returnstation in question is one of the nine seaside stations.