First of all, happy birthday to you! (19 years old? Twenty? )
Constellations are western things, which are obtained by using the months of the western calendar (Gregorian calendar and solar calendar). Leo) July 23rd to August 22nd.
China's birthdays are all celebrated in the lunar calendar, and birthdays written in the solar calendar are for the public to see. So if your birthday is celebrated by yourself, it is in the lunar calendar, and this year's birthday is tomorrow. If you fill in the file, you have to use the solar calendar.