BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//EAU//Astro Calendar//ZH
BEGIN:VEVENT
UID:2027-06-21-season-3@eau
DTSTAMP:20260916T185850Z
DTSTART;VALUE=DATE:20270621
DTEND;VALUE=DATE:20270622
SUMMARY:夏至 / June Solstice
DESCRIPTION:北半球白晝最長；夏季銀河核心在午夜前後高掛南方天空。
END:VEVENT
END:VCALENDAR