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Property Name



This property specifies the date and time that the information associated with the calendar component was last revised in the calendar store.

Note: This is analogous to the modification date and time for a file in the file system.

Value Type


Property Parameters

IANA and non-standard property parameters can be specified on this property.


This property can be specified in the "VEVENT", "VTODO", "VJOURNAL", or "VTIMEZONE" calendar components.


The property value MUST be specified in the UTC time format.

Format Definition

This property is defined by the following notation:

 last-mod   = "LAST-MODIFIED" lstparam ":" date-time CRLF

 lstparam   = *(";" other-param)


The following is an example of this property


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