Which day is better, the 13th or 14th of the first month?

The thirteenth day of the first month.

The auspicious days of the ecliptic in January of the lunar calendar are the third, ninth, thirteenth, fourteenth, sixteenth, twenty-first, twenty-fifth and twenty-sixth. Thirteen sounds more auspicious and the days are better than fourteen.

The 13th day of the first month is one of the traditional lunar festivals in China. The thirteenth day of the first month is called the birthday of the lamp holder. On this day, people will light a lamp under the kitchen stove, which is called kitchen lamp.