iCalendar is an open source text data format created in 1998.
| #2965on PLDB | 26Years Old |
The Internet Calendaring and Scheduling Core Object Specification (iCalendar) is a MIME type which allows users to store and exchange calendaring and scheduling information such as events, to-dos, journal entries, and free/busy information. Files formatted according to the specification usually have an extension of .ics. With supporting software, such as an email reader or calendar application, recipients of an iCalendar data file can respond to the sender easily or counter-propose another meeting date/time. Read more on Wikipedia...
BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
UID:uid1@example.com
DTSTAMP:19970714T170000Z
ORGANIZER;CN=John Doe:MAILTO:john.doe@example.com
DTSTART:19970714T170000Z
DTEND:19970715T035959Z
SUMMARY:Bastille Day Party
GEO:48.85299;2.36885
END:VEVENT
END:VCALENDAR