He has to travel at super speed to deliver all the gifts
There are over 2.1 billion children in the world. With an average of 2.5 children per household, Santa would have about 842 million stops on Christmas Eve. His trip around the world would cover close to 218 million miles. So he has to travel around 1,280 miles per second. Luckily with time zones and the Earth’s rotation, he’d have 32 hours to complete this.