CC 18012:2018
Date and time — General recurrence representation
<p>This document provides a generalized representation of selection rules and recurring time intervals with repeat rules, in line with the time scale components and date and time representations of ISO 8601-1. The representations describe a superset of the RECUR recurrence rules of RFC 5545 while aiming to maintain compatibility with them. Only date elements from the Gregorian calendar and times from the 24-hour clock are supported.</p> <p>== Introduction</p> <p>The iCalendar standard (<eref type="inline" bibitemid="RFC5545" citeas="IETF RFC 5545"/>) has defined the de-facto standard for specifying recurring time intervals.</p> <p>However, its syntax is tightly bound to the syntax and assumptions of <eref type="inline" bibitemid="RFC5545" citeas="IETF RFC 5545"/>, requiring a data model representation that assumes a hierarchy of properties, parameters and data types that are not necessarily provided in other date and time representations, such as the International Standard for date and time representation, <eref type="inline" bibitemid="ISO8601" citeas="ISO 8601:2004"/>.</p> <p><eref type="inline" bibitemid="RFC5545" citeas="IETF RFC 5545"/> also relies on a number of indirect data inheritance rules that are not clearly specified and therefore not easily reproduced in other representations outside of iCalendar.</p> <p>This document describes a method to specify recurring time intervals with repeat rules in representation in line with those of the time scale components and date and time representations described in <eref type="inline" bibitemid="ISO8601" citeas="ISO 8601:2004"/>.</p>
- Language
- en
- Copyright
- © 2018 CalConnect
- URN
urn:calconnect:cc-18012:2018- Canonical URL
https://standards.calconnect.org/docs/cc-18012/2018/- ISO 690 reference
- CC 18012:2018, Date and time — General recurrence representation. Edition 1. CalConnect, 2018.