One of the best ways to find the date of your friends birthdays is to look on Facebook. Almost everyone is on Facebook, and most people have their birthdays available for friends to see.
You can easily export all of your friends’ birthdays from Facebook into several popular calendar programs like Apple iCal, Microsoft Outlook, and Google Calendar. This makes it easy to see birthdays when you are using your calendar each day.
Here are the instruction:
To export all of your upcoming birthdays, click Events on the left side of your Facebook homepage.
At the bottom right below Events Happening This Week, click Upcoming Events to export all upcoming events or Birthdays
With these Facebook links you can learn more about subscribing to calendars in these popular programs: