HO, HO, HO, fellow worldbuilders. My name is Nicholaus, or simply Claus. However, most people will call me Santa.
I am the owner of a toy factory in the North Pole ☃. It is in the North's coast of Greenland, to be precise. It is simply the largest toy factory in the world. Each year, my slaves, ops, I meant to say, workers, produce a toy for every kid in the planet, for free (I don't pay them).
Each kid should receive his/her toy, already properly packaged, yearly in December, at the midnight of the day 24 to 25 in local time . Getting it earlier or later by no more than one hour is ok, but since I have to obey strict SLA protocols, nothing can be delivered before 11:00 PM of day 24 or after 01:00 AM of day 25.
My problem is logistic. I am the only person in this world who can deliver the toys, I can't delegate it to anybody else. My vehicle is a flying sled pulled by 12 reindeers. And I should be able to do all my billions deliveries in around 24 hours (getting advantage from Earth's rotation). My sled should be pretty fast and each delivery should be done pretty quickly.
What procedures should I follow in order to be able to deliver a toy to every kid in the world around local midnight on the Christmas night? How would I am be able to do that?