Santa is over the South Pacific and has delivered around 300 million presents so far.
He was last seen over the Solomon islands, having taken in New Zealand already this morning - which is night-time in the southern hemisphere.
He's due in Ireland with more gifts at midnight tonight, but he can't enter Irish airspace unless all the girls and boys are fast asleep.
Paul Mc Cann of the Irish Aviation Authority says air traffic controllers are ready to clear the way for Santa Claus:
