'Birthday' in the Bible

On the third day, which just happened to be Pharaoh's birthday, he threw a party for all his servants. He lifted the head of both his senior security advisor and of his head chef in front of his servants

"Look how the LORD has let me survive, as you can see, these 45 years since the time when the LORD said this through Moses, while Israel was wandering through the wilderness. And look! I'm here today my eighty-fifth birthday!