If you’d like to see your Google Calendar events in the Calendar app, you have two options:
·You can permanently move them into Outlook.com.When you’re done, all your events will be available in the Windows Calendar app. From there, you can edit, delete, and update your events.
·You can subscribe to your Google calendar from Outlook.com. When you’re done, you can see all your events in the Windows 8 Calendar app, but you won’t be
able to add, edit or delete events from the app. If you want to make updates, you’ll have to go to google.com and sign in.
Option 1: Move your Google Calendar events to Outlook.com