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 : Meeri, Meri, Merike, Merje
Yesterday : Georg, Jürgen, Jürgo, Jüri, Jürjo, Jürnas, Jüts, Ürjo

Today : Aada, Iida, Vaida, Vanda

Tomorrow : Marek, Margo, Margus, Mark, Marko, Markus
Day after tomorrow : Eesi, Reesi, Teesi, Teisi, Tereese