It is celebrated on the ninth day of the ninth lunar month.

它是在阴历九月初九庆祝的。

youdao

Yesterday was the ninth day of the World Cup.

昨天是世界杯的第九天。

youdao

The day when he left was the ninth day of the first lunar month.

他离开的那天是阴历正月初九。

youdao

Thursday will mark the ninth day of nationwide action, AFP news agency reports, with calls for strikes and protest marches in more than 100 towns and cities.

BBC: French MPs adopt pension reform

On the ninth day, she came home, and I began to realize that my feelings of fear and anxiety had changed in a way that no prenatal screening could ever have predicted.

NPR: I Am Capable Of More Than I Think I Am

This occurs at the wake, during the procession to the cemetery and on the ninth day of mourning, when prayers are recited in front of a three-tiered catafalque carrying a doll representing the dead.

UNESCO: Intangible Cultural Heritage