Thisd year we shall have the longest time slot since 1899 between Tzeis haKochovim and Chatzos, due the unusual earliness of the Secular date of Pesach.
However, if your Seder is identical in length each year, this year shall be the earliest finishing line, since 1899.
Despite the 1st Mishno in Arvei pesochim, we always have a very substantial high tea {sometimes hot dogs, fish, salads}, both on Erev Pesach [even when on Shabbos], and Rishon Shel Pesach to tide us thru Motzi Matzo, as clearly 1 raddish on its own shall not be able to accomplish that task.