Google Calendar offers a convenient way to remember birthdays by enabling the birthday calendar feature. By doing this, the birthdays of your contacts will automatically show up on your Google Calendar. To enable the birthday calendar, you simply need to access the settings in Google Calendar, expand the “My Calendars” section, and select the birthdays calendar. Once enabled, you can easily keep track of the birthdays of your contacts and make sure to celebrate them. Additionally, you can add birthdays to your contacts in the Google Contacts app to ensure they appear on your calendar.