2009-04-29 2026-03-26 A Standards Track RFC is required for registration of iCalendar elements that modify elements previously documented in a Standards Track RFC. Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass VCALENDAR Current VEVENT Current VTODO Current VJOURNAL Current VFREEBUSY Current VTIMEZONE Current VALARM Current STANDARD Current DAYLIGHT Current VAVAILABILITY Current AVAILABLE Current PARTICIPANT Current VLOCATION Current VRESOURCE Current VSTATUS Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass CALSCALE Current METHOD Current PRODID Current VERSION Current ATTACH Current CATEGORIES Current CLASS Current COMMENT Current DESCRIPTION Current GEO Current LOCATION Current PERCENT-COMPLETE Current PRIORITY Current RESOURCES Current STATUS Current SUMMARY Current COMPLETED Current DTEND Current DUE Current DTSTART Current DURATION Current FREEBUSY Current TRANSP Current TZID Current TZNAME Current TZOFFSETFROM Current TZOFFSETTO Current TZURL Current ATTENDEE Current CONTACT Current ORGANIZER Current RECURRENCE-ID Current RELATED-TO Current URL Current UID Current EXDATE Current EXRULE Deprecated RDATE Current RRULE Current ACTION Current REPEAT Current TRIGGER Current CREATED Current DTSTAMP Current LAST-MODIFIED Current SEQUENCE Current REQUEST-STATUS Current XML Current TZUNTIL Current TZID-ALIAS-OF Current BUSYTYPE Current NAME Current REFRESH-INTERVAL Current SOURCE Current COLOR Current IMAGE Current CONFERENCE Current CALENDAR-ADDRESS Current LOCATION-TYPE Current PARTICIPANT-TYPE Current RESOURCE-TYPE Current STRUCTURED-DATA Current STYLED-DESCRIPTION Current ACKNOWLEDGED Current PROXIMITY Current CONCEPT Current LINK Current REFID Current ESTIMATED-DURATION Current REASON Current SUBSTATE Current STATUS Current TASK-MODE Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass ALTREP Current CN Current CUTYPE Current DELEGATED-FROM Current DELEGATED-TO Current DIR Current ENCODING Current FMTTYPE Current FBTYPE Current LANGUAGE Current MEMBER Current PARTSTAT Current RANGE Current RELATED Current RELTYPE Current ROLE Current RSVP Current SCHEDULE-AGENT Current SCHEDULE-FORCE-SEND Current SCHEDULE-STATUS Current SENT-BY Current TZID Current VALUE Current DISPLAY Current EMAIL Current FEATURE Current LABEL Current SIZE Current FILENAME Current MANAGED-ID Current ORDER Current SCHEMA Current DERIVED Current GAP Current LINKREL Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass A Standards Track RFC is REQUIRED for the registration of new Value Data Types that modify existing properties. BINARY Current BOOLEAN Current CAL-ADDRESS Current DATE Current DATE-TIME Current DURATION Current FLOAT Current INTEGER Current PERIOD Current RECUR Current TEXT Current TIME Current UNKNOWN Reserved - Do not use URI Current UTC-OFFSET Current XML-REFERENCE Current UID Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass INDIVIDUAL Current GROUP Current RESOURCE Current ROOM Current UNKNOWN Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass FREE Current BUSY Current BUSY-UNAVAILABLE Current BUSY-TENTATIVE Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass A Standards Track RFC is REQUIRED for the registration of Participation Status values to be used in "VEVENT" calendar components. NEEDS-ACTION Current ACCEPTED Current DECLINED Current TENTATIVE Current DELEGATED Current COMPLETED Current IN-PROCESS Current FAILED Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass CHILD Current PARENT Current SIBLING Current SNOOZE Current CONCEPT Current DEPENDS-ON Current FINISHTOFINISH Current FINISHTOSTART Current FIRST Current NEXT Current REFID Current STARTTOFINISH Current STARTTOSTART Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass CHAIR Current REQ-PARTICIPANT Current OPT-PARTICIPANT Current NON-PARTICIPANT Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass AUDIO Current DISPLAY Current EMAIL Current PROCEDURE Deprecated Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass PUBLIC Current PRIVATE Current CONFIDENTIAL Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass PUBLISH Current REQUEST Current REPLY Current ADD Current CANCEL Current REFRESH Current COUNTER Current DECLINECOUNTER Current Expert Review with RFC Required Bernard Desruisseaux, Ken Murchison, Mike Douglass 1.0 Current 1.1 Current 1.2 Current 2.0 Current 2.1 Current 2.2 Current 2.3 Current 2.4 Current 2.5 Current 2.6 Current 2.7 Current 2.8 Current 2.9 Current 2.10 Current 2.11 Current 3.0 Current 3.1 Current 3.2 Current 3.3 Current 3.4 Current 3.5 Current 3.6 Current 3.7 Current 3.8 Current 3.9 Current 3.10 Current 3.11 Current 3.12 Current 3.13 Current 3.14 Current 4.0 Current 5.0 Current 5.1 Current 5.2 Current 5.3 Current Expert Review with RFC Required Unassigned SERVER Current CLIENT Current NONE Current Expert Review with RFC Required Unassigned REQUEST Current REPLY Current Expert Review with RFC Required Unassigned BADGE Current GRAPHIC Current FULLSIZE Current THUMBNAIL Current Expert Review with RFC Required Unassigned AUDIO Current CHAT Current FEED Current MODERATOR Current PHONE Current SCREEN Current VIDEO Current Expert Review Ken Murchison, Michael Douglass ACTIVE Current INACTIVE Current SPONSOR Current CONTACT Current BOOKING-CONTACT Current EMERGENCY-CONTACT Current PUBLICITY-CONTACT Current PLANNER-CONTACT Current PERFORMER Current SPEAKER Current Expert Review Ken Murchison, Michael Douglass PROJECTOR Current ROOM Current REMOTE-CONFERENCE-AUDIO Current REMOTE-CONFERENCE-VIDEO Current Expert Review with RFC Required Ken Murchison, Michael Douglass ARRIVE Current DEPART Current CONNECT Current DISCONNECT Current Standards Action With Expert Review Unassigned CANCELLED Current COMPLETED Current CONFIRMED Current DRAFT Current FAILED Current FINAL Current IN-PROCESS Current NEEDS-ACTION Current PENDING Current TENTATIVE Current Standards Action With Expert Review Unassigned OK Current ERROR Current SUSPENDED Current Standards Action With Expert Review Unassigned AUTOMATIC-COMPLETION Current AUTOMATIC-FAILURE Current AUTOMATIC Current CLIENT Current SERVER Current