Until's lists

Holidays nobody asked for

Add all to calendar

Adds all 12 dated countdowns

Google Calendar Outlook Download .ics file

Google and Outlook subscribe to this list. If Google asks you to check the URL, copy the calendar URL and add it under Settings → Add calendar → From URL.

Batman Day, Talk Like a Pirate Day, Ask a Stupid Question Day — official excuses to be weird.

Countdowns