Verified Official Sources
Preparing Your Calendar Download — Free Holiday Calendar (ICS/CSV/PDF)
Your calendar download will begin automatically in a moment. Free official holiday calendar files in ICS, CSV, and PDF formats for Google, Apple, and Outlook Calendar.
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How to import into your calendar
Google Calendar (Web & Android)
Open Google Calendar on desktop → Settings (gear icon) → "Import & export" to upload .ics file, or "Add calendar" → "From URL" to subscribe with the copied link.
Apple Calendar (iPhone, iPad & Mac)
On iPhone/iPad, tap the downloaded file and select "Add All". On Mac, open Calendar → File → "New Calendar Subscription…", paste the ICS link, and select auto-refresh.
Microsoft Outlook (Web & Desktop)
In Outlook on the web, click "Add calendar" → "Subscribe from web" and paste the ICS link. In the desktop app, go to File → Open & Export → "Open Calendar".