I was born on the eighth day of May. What constellation is it? When is my birthday this year?

Constellations spread from west to east.

In the west, there is no lunar calendar, only the solar calendar.

So constellations are different constellations that distinguish everyone according to the solar calendar.

therefore

According to the solar calendar, your sign should be Gemini.

As for the different birthday time every year, it should be the birthday of the lunar calendar.

The eighth day of the fifth lunar month should be June this year 19.