Leap year
This year we have an extra day in February. In English, this is called a Leap Year. And February 29th is called Leap Day.
This is because the calendar and the movement around the sun do not match exactly 365 days and zero hours. It is actually a few hours longer so every 4 years we have an extra day.
So please enjoy this extra day.
Image by Clker-Free-Vector-Images from Pixabay