How does Google know when it is my birthday? While you are creating a new Gmail - Google account, you fill the details of your birthday. This way, Google know when it's your birthday.

Google Search is a powerful tool to find someone's birthday. Here's how you can use it effectively: Start with a simple search by entering the person's full name followed by the word “birthday”. Look through the first few pages of results; sometimes, personal websites or past event listings may mention birthdays.

Google celebrates events with Doodles. Users can find their birthday doodles on the Google Doodle website by entering their date of birth. The website curates all the doodles created over the years and allows users to search for doodles and events that happened on their birthday. Google celebrates events with Doodles.