20 19 When did "Count Nine" begin (Gregorian calendar)? When is 20 19 Arbor Day? When is Father's Day? When is Mother's Day?

The number nine starts from the day of winter solstice every year, and the number nine in 20 19 starts from 2018 65438+February 22nd (winter solstice).

Arbor Day Date: 201March 9 12.

Arbor Day is a festival to publicize and protect trees according to law, and to organize and mobilize the masses to actively participate in afforestation.

Mother's Day Date: May 20 19 12.

The second Sunday in May in the solar calendar is Mother's Day. This is a festival to thank mothers, which first appeared in ancient Greece, while modern Mother's Day originated in the United States.

Date of Father's Day: 20 19,1June.

The third Sunday in June in the solar calendar is Father's Day. This is a festival to thank my father, which started in the early 20th century and originated in America.