Excuse me, master, my son was born at 8: 50 am on October 28th, 2007/kloc-0. When is his birthday? thank you

Lunar calendar: October 19th, Dinghai.

Spring Festival: February 18

Before the festival: Xu Bingnian

After the festival: Ding Hainian

Eight characters: Ding Hai, Xinhai, Bing Yin, Ren Chen.

Five elements: fire, water, gold, fire, wood, water and earth.

Orientation: north, south, northwest, south, east, north and middle.

Zodiac: pig