The Day Out of Time marks the end of one solar cycle and the next.
The Day out of Time, which falls on July 25 each cycle, is the day before the new year.
The new year begins with July 26th and ends with July 24, only 364 days. The missing day is The Day Out of Time, giving the calendar 365 days.

This topic and others such as Day out Of Time is explained here, and perhaps you'll understand why it is celebrated.

Galactic Portal Day
Kin 108
Yellow Self-Existing Star
I Define in order to Beautify
Measuring Art
I seal the store of Elegance
With the Self-Existing tone of Form
I am guided by the power of flowering
I am a galactic activation portal enter me
Castle 3: Blue Western Castle of Burning
Wavespell Red Serpent

Full Moon
Full Moon