Family Sharing in iOS 8 makes it easy to share a lot more than just App Store and iTunes purchases. One of the biggest headaches for many families is coordinating schedules. From soccer practices to ballet recitals to a night without the kids, Family Sharing can also help you make sure everyone's where they need to be, when they need to be there. Once you enable Family Sharing, a shared calendar is automatically created for you. All you have left to do is start using it!
How to use Family Sharing with the Calendar app in iOS 8
Create a new event or tap on an existing one that you'd like to appear on the family calendar.
Tap on Calendar.
Choose the calendar labeled Family.
Fill out and save your event just as you normally would.
That's all there is to it! Everyone that's in your Family Sharing group will see anything that is added to the Family calendar via the Calendars app. They'll also receive any notifications linked to events so everyone can stay on top of who needs to be where, and when. Essentially the Family calendar is simply a shared calendar similar to what's always been available in iOS. Family Sharing just takes the grunt work out of creating and sharing it for you.