When is Mars Day?

The date of Mars in the calendar refers to a "day and night" time on Mars, which is a solar day on Mars. In China's ancient book of choosing a day, Mars Day is considered as an auspicious day, which can be used for various activities, such as building houses and starting construction. However, it should be noted that this is only a traditional belief and has no scientific basis. In modern society, we must still follow scientific principles and arrange our affairs in work and life reasonably.