The ICS file can be imported into Google Calendar, Outlook, or Apple Calendar with a single click, and the cheatsheet keeps leap-year math at hand.
- Drop `sample-calendar.ics` into any supporting app—choose “Import” or drop the file directly from downloads.
- The `leap-year-cheatsheet.txt` describes the Gregorian rules for scribes, editors, or automation scripts.
- `timekeeping-lore.md` captures bite-sized stories you can repurpose for newsletters or release notes.
Bonus: Rename the ICS file after downloading—like “Solstice Watch 2026.ics”—before sharing it with
teams so recipients immediately understand the event context.