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TZID:Europe/Helsinki
BEGIN:DAYLIGHT
DTSTART:19700329T030000
TZOFFSETFROM:+0200
TZOFFSETTO:+0300
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RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
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DTSTART:19701025T040000
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BEGIN:VEVENT
UID:69f37f9700015
DTSTAMP:20260430T161311Z
DTSTART;TZID=Europe/Helsinki:20260423T000000
DTEND;TZID=Europe/Helsinki:20260423T230000
SUMMARY:World Book Day
URL:https://kirjasto.seamk.fi/en/?post_type=event&p=8693
END:VEVENT
END:VCALENDAR