Are seven o'clock in the morning and seven o'clock in the evening the same in a birthday?

No, birthdays are 24-hour. Date of birth, abbreviated as eight characters, refers to the calendar date when a person is born; Year, month and day have four pillars and branches, each with two words, a total of eight words, so it is called. Birthday plays an important role in Han folk beliefs, and ancient Han astrologers calculate people's fate accordingly. From Li's three pillars to Li's four pillars, and then to Lei's four pillars, the eight-character prediction has been developing continuously in practice. Every step forward contains the painstaking efforts of scholars and social practice activists of all ages.

In order to get the correct birth time, the ancient Han people thought that the sundial instrument was the most accurate measurement during the day. When the clock time is the artificial average time and the regional standard, it is necessary to calculate the "apparent solar time difference" according to the solar terms (ecliptic) and the "local longitude time difference" according to the place of birth, so as to get the real astronomical birth time.

Purple stone: 23: 00 am-12: 59 am

Ugly time: 1 pm-2: 59 am

Yin Shi: 3 am to 4: 59 am.

Shi Mao: From 5 am to 6: 59 am.

Morning: 7: 00 a.m. to 8: 59 a.m.

Shi Si: 9: 00- 10: 59.

Noon: 1 1 p.m. 12: 59

No time: 13 pm-14: 59 pm

Application time: 15 pm-16: 59 pm

Unified time: p.m. 17- 18: 59

Time: 19- 20: 59 pm

Shihai: 2 1 pm-22: 59 pm