Hamburger meat or ground beef cooks pretty fast.
Hamburger Meat and Ground beef usually takes around 5 to 10 minutes to fully cook depending on the thickness of the meat.
Every 2 to 3 minutes you should flip the hamburger meat or ground beef over in the skillet and it should be done once the outsides are brown.
You can check to see for sure if the hamburger meat is fully cooked by taking a knife and cutting through the meat and if there's no pinkish color or any blood running from the meat then it's fully cooked and ready to eat.