"I bought this thermos for free" Appears perfectly typical to me. "That thermos was for free" Seems undesirable: I might just say "That thermos was free."It truly is an hour or so from Bremer Bay in the park (Just about every way) so Meaning that it’s improved to help make on a daily basis excursion in the Fitzgerald in lieu of travelling onwards

As the above commentator indicates, you can in no way say "from the Saturday afternoon" -- but I do think you already realize that. In almost any occasion, from the above mentioned two illustrations I do think It is really very clear that the selection of "during the afternoon" compared to "on Saturday afternoon" relies on the temporal frame of ref