Try out our new RRULE tool for creating RRULE compatible strings.






Specifies a time range to limit the set of "overridden components" returned by the server.


The CALDAV that for a given calendaring REPORT request, the server MUST return, in addition to the "master component", only the "overridden components" that impact a specified time range. An overridden component impacts a time range if its current start and end times overlap the time range, or if the original start and end

times -- the ones that would have been used if the instance were not overridden -- overlap the time range.

The "start" attribute specifies the inclusive start of the time range, and the "end" attribute specifies the non-inclusive end of the time range. Both attributes are specified as date with UTC time value. The value of the "end" attribute MUST be greater than the value of the "start" attribute.

The server MUST use the same logic as defined for CALDAV:time- range to determine if the current or original scheduled time of an "overridden" recurrence instance intersects the specified time range.

Overridden components that have a RANGE parameter on their RECURRENCE-ID property may specify one or more instances in the recurrence set, and some of those instances may fall within the specified time range or may have originally fallen within the specified time range prior to being overridden. If that is the case, the overridden component MUST be included in the results, as it has a direct impact on the interpretation of instances within the specified time range.



   start value: an iCalendar "date with UTC time"
   end value: an iCalendar "date with UTC time"

This document was automatically converted to XHTML using an RFC to HTML converter with the original text document at the Internet Engineering Task Force web site at .  The original text document should be referred to if there are any errors or discrepancies found in this document.

Need to test your iCalendar feeds?

The iCalendar Validator provides developers and testers a method to validate their iCalendar feeds, which can take data from either a URL, file or text snippet and compare it against the RFC 5545 specification.  We believe we have one of the best iCalendar validation tools available on the internet. More information about the validator can be found here.