For many children, Christmas Eve is even more exciting than the main event the following day.
They can place their stockings, add some finishing touches to the tree and leave mince pies, carrots and a glass of sherry for Santa and his reindeer.
That's not all.
Parents can also point out a bright light in the skies tomorrow evening and tell their little ones they can see Father Christmas beginning his travels.
NASA says the International Space Station will be visible for four minutes from 5.23pm and again for one minute at 6.59pm.
If standing in Chelmsford it can be seen facing south west.
The light is apparently visible again for four minutes from 4.32pm on Christmas Day and for two minutes from 6.08pm later the same day.
Cloud is forecasted for Christmas Eve but this is expected to clear by the following day.
