20 13 is an auspicious day for sheep and snakes.

During the solar calendar 10, September 16 and 26th of the lunar calendar are suitable for your marriage.

The following content comes from my Baidu space for your reference:

The first, seventh, ninth, fifteenth, seventeenth, twenty-third and twenty-fifth days of each month in the lunar calendar are ominous days for Zhoutang, and the marriage is extremely fierce, so the two days at the end of the month cannot be used.

20 13 the auspicious days of the first-class wedding in the lunar calendar are as follows: (this is the lunar calendar)

The fifth day of the first month (rushing snakes); February 10 (Chonglong) and 13 (Chongyang); March 20 (Chongyang); April 10 (rabbit), 1 1 day (dragon), 2 1 day (tiger) and 22nd (rabbit); Possibility (none); June 1 1 day (for rabbits) and 2 1 day (for cattle); July 14 (rat race); August 10th (cattle), 21st (rats); September 16 (for cattle) and 26 (for pigs); 1October 6 (monkey), 8 (dog), 19 (chicken), 2 1 day (pig); Winter 26 (washing dogs) and 27 (washing pigs); The sixth day of the twelfth lunar month (rushing sheep) and the eighth day (rushing chicken).

This is a good wedding day for you to choose from, but conflict day can't be used, nor can the lunar birthday month. Besides, there is nothing better. Any other day is missing.