babies born on October 10, supposedly conceived on New Year's Day; normal gestation time (i.e. 9 months)
210th day (from the first day of spring according to the lunar calendar); the storm day
Harvest festival held on the night of the tenth day of the tenth month (to send the rice paddy gods back to the mountains after harvest)
festival held on January 10 in honor of Ebisu, the god of fishing and commerce
something that comes too late and is useless; like a chrysanthemum prepared for the ninth day of the ninth month of the lunar calendar for the Chrysanthemum festival but that blooms only on the tenth