BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//EAU//Calendar//ZH
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:2026-12-21-season-1@eau.tw
DTSTAMP:20261003T224432Z
DTSTART;VALUE=DATE:20261221
DTEND;VALUE=DATE:20261222
SUMMARY:冬至
DESCRIPTION:北半球一年中夜晚最長的一天，是深空攝影的黃
 金時段。
CATEGORIES:節氣
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:冬至
TRIGGER:-PT30M
END:VALARM
END:VEVENT
END:VCALENDAR