可在文檔 RFC2445 中找到所有 iCal 對象的描述。
下表顯示哪些 iCal 對象被匯入，哪些對像沒有。「約會」和「任務」列中的信息具有以下含義：
"X" 表示導入該對象。在 RFC2445 中設置了對象值。
數字，例如 "255"，表示導入該對象。數字指出字符的最大數量。
條目「無限制」表示導入該對象。對字符的最大數量沒有限制。
條目 "-" 表示不導入該對象。
| 分類 | iCal 物件 | 約會 | 任務 |
|---|---|---|---|
| 日曆內容 | CALSCALE | - | - |
| METHOD | - | - | |
| PRODID | X | X | |
| VERSION | X | X | |
| 日曆元件 | VALARM | X | X |
| VEVENT | X | X | |
| VFREEBUSY | - | - | |
| VJOURNAL | - | - | |
| VTIMEZONE | X | X | |
| VTODO | X | X | |
| 元件內容 | ATTACH | - | - |
| ATTENDEE | X | X | |
| CATEGORIES | X | X | |
| CLASS | X | X | |
| COMMENT | - | - | |
| COMPLETED | - | X | |
| CONTACT | - | - | |
| CREATED | X | X | |
| DESCRIPTION | 無限制 | 無限制 | |
| DTEND | X | X | |
| DTSTAMP | X | X | |
| DTSTART | X | X | |
| DUE | X | X | |
| DURATION | X | X | |
| EXDATE | X | - | |
| EXRULE | - | - | |
| FREEBUSY | - | - | |
| GEO | - | - | |
| LAST-MODIFIED | - | - | |
| LOCATION | 255 | - | |
| ORGANIZER | - | - | |
| PERCENT-COMPLETE | - | X | |
| PRIORITY | - | X | |
| RDATE | - | - | |
| RECURRENCE-ID | - | - | |
| RELATED-TO | - | - | |
| REPEAT | - | - | |
| REQUEST-STATUS | - | - | |
| RESOURCES | X | - | |
| RRULE | X | X | |
| SEQUENCE | - | - | |
| STATUS | - | X | |
| SUMMARY | 255 | 255 | |
| TRANSP | - | X | |
| TRIGGER | X | X | |
| TZID | X | X | |
| TZNAME | X | X | |
| TZOFFSETFROM | X | X | |
| TZOFFSETTO | X | X | |
| TZURL | X | X | |
| UID | X | X | |
| 網址 | - | - | |
| 屬性參數 | CUTYPE | X | X |
| DELEGATED-FROM | - | - | |
| DELEGATED-TO | - | - | |
| DIR | - | - | |
| ENCODING | X | X | |
| FMTTYPE | - | - | |
| FBTYPE | - | - | |
| LANGUAGE | - | - | |
| MEMBER | - | - | |
| PARTSTAT | - | - | |
| RANGE | - | - | |
| RELATED | - | - | |
| RELTYPE | - | - | |
| ROLE | - | - | |
| RSVP | - | - | |
| SENT-BY | - | - | |
| TZID | X | X | |
| VALUE | X | X |