Usui

The traditional chinese calendar divides a year into 24 solar terms. Yǔshuǐ / 雨水, Usui, Usu, or Vũ thủy, literally meaning rain water, is the second solar term. It begins when the Sun reaches the celestial longitude of 330° and ends when it reaches the longitude of 345°. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 330°. In the gregorian calendar, it usually begins around 18 February (19 February of / in east Asia time) and ends around 5 Ma...