BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//EAU//Astro Calendar//ZH
BEGIN:VEVENT
UID:2027-09-23-season-4@eau
DTSTAMP:20260916T185851Z
DTSTART;VALUE=DATE:20270923
DTEND;VALUE=DATE:20270924
SUMMARY:秋分 / September Equinox
DESCRIPTION:晝夜等長，觀測季節再度開始。
END:VEVENT
END:VCALENDAR