BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//EAU//Calendar//ZH
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:2027-06-21-season-3@eau.tw
DTSTAMP:20261003T224444Z
DTSTART;VALUE=DATE:20270621
DTEND;VALUE=DATE:20270622
SUMMARY:夏至
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。
CATEGORIES:節氣
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:夏至
TRIGGER:-PT30M
END:VALARM
END:VEVENT
END:VCALENDAR