What does a white day mean?

A white day [Britain ][hwait dei][ America ][hwa? t de]

Auspicious day, auspicious day, auspicious day;

Example:

1.

For me, March in Japan is one of the most lovely months of the year. At the end of the month, cherry blossoms are in full bloom, starting with hina-matsuri Festival, with white day in the middle, and the 27th is my birthday (I was 49 years old three weeks ago).

For me, March is the best month of the year in Japan. There are cherry blossoms at the end of the month, Daughter's Day at the beginning of the month, and daytime in the middle. The 27th is my birthday (I just turned 49th a few weeks ago).