To add an iCal feed in Outlook, follow these instructions:

1.  Copy the URL from the box above.

2.  In Outlook, Choose "Tools" and "Account Settings"

3. In the dialog box that appears, click on the "Internet Calendars" tab.

4. Click on the "New" link and paste URL into the field.

5. Click "Add" when finished and enter a custom name for this new calendar if you want.

6. Click "OK" when finished.

7. Click on your regular "Calendar" link in Outlook to view your default calendar. 

This new calendar should now be available in addition to your default calendar and can be viewed as an overlay to your default calendar or side-by-side. 

iOS: To subscribe using your iPhone, iPod Touch, or iPad:

1. Copy the URL from the box above.

2. Click your iPhone Settings icon.

3. Select Mail, Contacts, Calendars from the list.

4. Select Add Account.

5. Select Other.

6. Select Add Subscribed Calendar at the bottom of the list.

7. Paste the subscription URL in the server field.

8. Click Next in the top right-hand corner of the screen.

9. The URL will be verified, and your subscription information will be displayed.

10. Click Save.

To view this calendar on your iPhone:

1. Click the Calendar icon on your iPhone's home screen.

2. Click the Calendars button in the top left-hand corner of your default calendar screen.

3. Select the name of the calendar you have just added. A check mark will appear next to it.

4. Click Done.

Events from this calendar will now display on your iPhone calendar.

Google: To add an iCal feed in Google Calendar follow these instructions:

1. Copy the URL from the box above.

2. On your computer, open Google Calendar.

3. On the left side, find "Other calendars" and click the down arrow.

4. Select Add by URL.

5. Paste the URL in the field provided.

6. Click Add calendar. The calendar will appear on the left side under "Other calendars."

Note: It might take up to 12 hours for changes to show in your Google Calendar.

Android: To add an iCal feed in Andriod, follow the Google Calendar instructions then do the following:

1. Tap the "Menu" button on your Android device and tap "Settings."

2. Tap "Accounts and Sync" and tap the name of a Google account set up on your Android device.

3. Verify at least one calendar is checked in the Google account's synchronization settings.

4. Provide the email address and password for the Google account set up on your Android device. You can also type a description for the account into the description box.

5. Add the following address to the Server Options box, replacing "you@gmail.com" with your Google account's email address: https://www.google.com/calendar/dav/you@gmail.com/user

6. Click "Add" to add the account, leaving the Use Kerberos v5 for Authentication check box unchecked.

7. Select the Google account you added and click the "Delegation" tab. Select the calendars that your Android device synchronizes with by clicking their check boxes.

8. Click "Add Email" in the prompt window that appears if your Google account's email address isn't already in your Mac's address book.

9. Add events to your Google account's calendars from iCal. ICal automatically synchronizes changes to your Google account every five minutes, where your Android device can synchronize them.