How to calculate a person's birthday time

Your birthday is on March 20th, 9 1 year, so March 20th is your birthday time every year.

So your cousin is June 23, which is the birthday time every year, do you know?

Birthday is the anniversary of the year you were born.

For example, 1 94910/October1day was the founding day of China, so last year 2009 happened to be the 60th anniversary of the founding of China!

Your cousin's birthday is coming. Happy birthday to her!