Is it better to send ghosts for one day or two?

According to the Gregorian calendar, there are good days and bad days on single and double days, and it is impossible to judge whether it is a good day or a good day. The exact date needs to be checked now. However, I would like to advise the landlord that these are unreliable and feudal superstitious things, and I don't believe them. If you think you want peace of mind, then choose a specific day to check it out.