This is the official manual for the latest Org-mode release.
Special properties provide an alternative access method to Org mode features,
like the TODO state or the priority of an entry, discussed in the previous
chapters. This interface exists so that you can include these states in a
column view (see Column view), or to use them in queries. The following
property names are special and (except for
:CATEGORY:) should not be
used as keys in the properties drawer:
ID A globally unique ID used for synchronization during iCalendar or MobileOrg export. TODO The TODO keyword of the entry. TAGS The tags defined directly in the headline. ALLTAGS All tags, including inherited ones. CATEGORY The category of an entry. PRIORITY The priority of the entry, a string with a single letter. DEADLINE The deadline time string, without the angular brackets. SCHEDULED The scheduling timestamp, without the angular brackets. CLOSED When was this entry closed? TIMESTAMP The first keyword-less timestamp in the entry. TIMESTAMP_IA The first inactive timestamp in the entry. CLOCKSUM The sum of CLOCK intervals in the subtree.
org-clock-summust be run first to compute the values in the current buffer. CLOCKSUM_T The sum of CLOCK intervals in the subtree for today.
org-clock-sum-todaymust be run first to compute the values in the current buffer. BLOCKED "t" if task is currently blocked by children or siblings ITEM The headline of the entry. FILE The filename the entry is located in.