Copy the link, do not just tap it. Tapping the link downloads a file that is frozen at today's schedule. Pasting the link into your calendar app's Subscribe field keeps it live, so date changes, postponements and cancellations arrive on their own all season.
iPhone or iPad
Copy the link above.
Open the Calendar app and tap Calendars.
Tap Add Calendar, then Add Subscription Calendar.
Paste the link, then tap Find. On older iPhones this button says Subscribe.
Next to Account, choose iCloud if you see it, so the schedule shows on all your devices.
Tap Done (the checkmark). On older iPhones, tap Add.
Android or Google Calendar
On a computer, go to calendar.google.com. Google does not allow adding a subscription from the phone app.
On the left, next to "Other calendars", click the plus sign.
Choose "From URL".
Paste the link and click "Add calendar".
On your phone, open the Google Calendar app, tap Menu in the top left, and make sure the box next to the new calendar is checked.
Google refreshes subscribed calendars on its own schedule, often several hours behind.
Mac Calendar
Open the Calendar app.
File, then New Calendar Subscription.
Paste the link and click Subscribe.
Set Location to iCloud so it also shows on your phone, set Auto-refresh to Every hour, then click OK.
Outlook
In Outlook, open Calendar and choose Add calendar.
Choose "Subscribe from web".
Paste the link, give it a name, then choose Import.
Older Outlook for Windows: on the Home tab, choose Add Calendar, then From Internet. Paste the link, click OK, then Yes.
Outlook refreshes on its own schedule, and a change can sometimes take more than a day to show.
Put a schedule button on your phone's home screen
iPhone or iPad
Open this page in Safari.
Find Share. It is part of Safari, not a button on this page. If you see a square with an arrow, tap it. If not, tap the small icon at the left end of the address bar, or the three dots beside it, then Share. If no menu opens, press and hold the address bar.
Scroll down, tap "Add to Home Screen", then tap Add.