I don’t know where you are from, but local people usually ask a worshiper to calculate the day and hour, and then go to the new house to worship the god. But I found that people in different places have different customs.
If you ask this, you must not be a local, so just follow the customs in your hometown. Ask the elderly at home to help you find an auspicious day and time and teach you how to prepare.
There are many websites on the Internet for checking the almanac and calculating auspicious days and times. You can also check it yourself.