What day is July 28th in Gregorian calendar?

According to the perpetual calendar, the number of solar calendars on July 28th of the lunar calendar depends on which year you are referring to. Because the correspondence between the lunar calendar and the solar calendar is not fixed, July 28th of each lunar calendar may correspond to a different solar calendar date. For example, July 28th of the lunar calendar in 2023 is September 12 of the Gregorian calendar, and July 28th of the lunar calendar in 2022 is August 25th of the Gregorian calendar.