What is the time, history and significance of all traditional festivals in China as common sense?

Spring Festival time: the first day of the first lunar month custom: forbearing being old-fashioned.

Lantern Festival Time: On the 15th day of the first lunar month, custom: watch lanterns, eat Yuanxiao, walk on stilts, and solve riddles on the lanterns on lanterns.

Cold Food Festival Time: The custom of Tomb-Sweeping Day the day before: cooking with fire and eating cold food.

Tomb-Sweeping Day time: the eighth day of the third lunar month (Tomb-Sweeping Day in the 24th solar terms of the lunar calendar, around April 5th of the Gregorian calendar) Customs: sweeping graves and going for an outing.

Dragon Boat Festival time: the fifth day of the fifth lunar month: eating zongzi and racing dragon boats.

Tanabata time: the seventh day of the seventh lunar month, the custom is to wear needles for cleverness.

Time of the Double Ninth Festival: the ninth day of September. Custom: Climb the mountain and insert dogwood.

Mid-Autumn Festival time: August 15th of the lunar calendar custom: enjoy the moon.

Laba Festival time: the eighth day of the twelfth lunar month custom: drink Laba porridge.