When did Goebbels know World War 2 was lost?

Joseph Goebbels, the Nazi Propaganda minister, began to realize that World War II was lost in early 1945 as Allied forces advanced into Germany. By late March 1945, with the fall of cities like Berlin imminent and the Red Army approaching, it became increasingly clear to him and other Nazi leaders that defeat was unavoidable. Goebbels's despair deepened in April 1945, particularly after Adolf Hitler's suicide on April 30, leading him to make a final stand in the face of overwhelming odds.