What month is the twelfth day of the seventh lunar month?

August 27th, 2023. Looking up the calendar, we can see that July 12 of the lunar calendar is August 27th, 2023, three days before the Mid-Autumn Festival on August 30th, 2023. The lunar calendar is based on the cycle of the moon phase, and each moon phase changes to one month, and the reference year of the return of the sun is one year. Twenty-four solar terms have been added, and leap months have been set up to make the average calendar year adapt to the tropical year.