Automatically update school year calendar changes on your personal calendar
The difference between importing and subscribing to a calendar
When you import an .ics file, you get a snapshot of the events in the calendar at the time of import. Your calendar does not refresh the imported events automatically even if the calendar's owner makes an update.
Subscribing to an online calendar connects it to your calendar. Whenever the calendar owner makes changes to the events, your calendar is updated.
Google Calendar / Android Devices
Click link at bottom right of calendar (above)
If you are not logged into your Google Account, you will be asked to log in.
The calendar will be added to your Google calendar list under Other Calendars
On your Android device that is synced to your Google Account, verify that Sync Calendars is selected in Settings.