What do you mean by revising the old almanac?

1, repair: that is, repair and repair of yangzhai.

2. Build buildings, gates and decorations. Avoid unlucky days, so it will be auspicious. People born in the year of Bingzi should avoid worrying about ugliness when building houses; People born in the year of Bing Shen should avoid getting married when building a house. People born in Jiazi year should avoid ugly days when building houses; People born with their grandmother Jia Xu should avoid the days of death when building houses; People born in Yihai should avoid Geng Yin Day when building houses. People born in Ding Hai should avoid non-Yin days when building houses. People born in Wuyin should avoid Guihai Day when building houses. People born in the year of Ding Chou should avoid Prince's Day when building a house.