What is a "Names day"?
A names day is a tradition in some countries in Europe and Latin America
that consists of celebrating a day of the year that is associated with one's given name.

The celebration is similar to a birthday.

Day before yesterday : Ludvig, Lui, Luukas
Yesterday : Stella, Tähte, Tähti

Today : Jasper, Kaspar, Kasper

Tomorrow : Ulla, Ulrika, Ursula
Day after tomorrow : Anno, Annus, Hanno, Hannus, Ihan, Ihanus, Jaano, Jaanus