Twilight comes as day is ending and night overtakes it. See a Wall Street Journal article which strongly implies we are in the twilight of the Merkel era in Germany and the EU.
Merkel no longer has majority support and the idea of her leading a coalition government isn’t popular with Germans. The difficulty is that there is no national consensus on who else should lead Germany.
The article finishes by saying, if coalition talks with the Social Democrats fail, as the leader of the single largest group in the Bundestag she will lead a minority goverment, or try to do so. Such hasn’t happened in Germany since World War II ended.
Merkel’s weakness in Germany costs her the unofficial leadership of the EU, which mantle Macron of France will try to assume.