horde/kronolith

Calendar and scheduling application

v5.0.0RC5 2026-06-12 00:00 UTC

Requires

• php: ^8.1
• ext-gettext: *
• ext-json: *
• ext-simplexml: *
• horde/auth: ^3 || dev-FRAMEWORK_6_0
• horde/autoloader: ^3 || dev-FRAMEWORK_6_0
• horde/content: ^3 || dev-FRAMEWORK_6_0
• horde/core: ^3 || dev-FRAMEWORK_6_0
• horde/data: ^3 || dev-FRAMEWORK_6_0
• horde/date: ^3 || dev-FRAMEWORK_6_0
• horde/date_parser: ^3 || dev-FRAMEWORK_6_0
• horde/dav: ^2 || dev-FRAMEWORK_6_0
• horde/eventdispatcher: ^1 || dev-FRAMEWORK_6_0
• horde/exception: ^3 || dev-FRAMEWORK_6_0
• horde/form: ^3 || dev-FRAMEWORK_6_0
• horde/group: ^3 || dev-FRAMEWORK_6_0
• horde/history: ^3 || dev-FRAMEWORK_6_0
• horde/horde: ^6 || dev-FRAMEWORK_6_0
• horde/horde-installer-plugin: dev-FRAMEWORK_6_0 || ^3 || ^2
• horde/http: ^3 || dev-FRAMEWORK_6_0
• horde/icalendar: ^3 || dev-FRAMEWORK_6_0
• horde/image: ^3 || dev-FRAMEWORK_6_0
• horde/itip: ^3 || dev-FRAMEWORK_6_0
• horde/lock: ^3 || dev-FRAMEWORK_6_0
• horde/logintasks: ^3 || dev-FRAMEWORK_6_0
• horde/mail: ^3 || dev-FRAMEWORK_6_0
• horde/mime: ^3 || dev-FRAMEWORK_6_0
• horde/nls: ^3 || dev-FRAMEWORK_6_0
• horde/notification: ^3 || dev-FRAMEWORK_6_0
• horde/perms: ^3 || dev-FRAMEWORK_6_0
• horde/serialize: ^3 || dev-FRAMEWORK_6_0
• horde/share: ^3 || dev-FRAMEWORK_6_0
• horde/support: ^3 || dev-FRAMEWORK_6_0
• horde/text_filter: ^3 || dev-FRAMEWORK_6_0
• horde/timezone: ^2 || dev-FRAMEWORK_6_0
• horde/url: ^3 || dev-FRAMEWORK_6_0
• horde/util: ^3 || dev-FRAMEWORK_6_0
• horde/view: ^3 || dev-FRAMEWORK_6_0

Requires (Dev)

• horde/activesync: ^3 || dev-FRAMEWORK_6_0
• horde/backup: ^2 || dev-FRAMEWORK_6_0
• horde/db: ^3 || dev-FRAMEWORK_6_0
• horde/nag: ^5 || dev-FRAMEWORK_6_0
• horde/openxchange: ^2 || dev-FRAMEWORK_6_0
• horde/test: ^3 || dev-FRAMEWORK_6_0
• horde/timeobjects: ^3 || dev-FRAMEWORK_6_0
• pear/date_holidays: *

Suggests

• ext-xmlwriter: *
• horde/activesync: ^3 || dev-FRAMEWORK_6_0
• horde/backup: ^2 || dev-FRAMEWORK_6_0
• horde/db: ^3 || dev-FRAMEWORK_6_0
• horde/nag: ^5 || dev-FRAMEWORK_6_0
• horde/openxchange: ^2 || dev-FRAMEWORK_6_0
• horde/timeobjects: ^3 || dev-FRAMEWORK_6_0
• pear/date_holidays: *

GPL-2.0-only

• Jan Schneider
• Michael J Rubinsky
• Chuck Hagenbuch

• calendar
• CalDAV

README

Contact:	[e-mail]

Contents

• 1   Obtaining Kronolith
• 2   Documentation
• 3   Installation
• 4   Assistance
• 5   Licensing

Kronolith is the Horde calendar application. It provides web-based calendars backed by a SQL database or a Kolab server. Supported features include Ajax and mobile interfaces, CalDAV support, shared calendars, remote calendars, invitation management (iCalendar/iTip), free/busy management, resource management, alarms, recurring events, tasks integration, import and export functions (iCalendar and CSV formats), and a number of different calender views.

This software is OSI Certified Open Source Software. OSI Certified is a certification mark of the Open Source Initiative.

1   Obtaining Kronolith

Further information on Kronolith and the latest version can be obtained at

http://www.horde.org/apps/kronolith

2   Documentation

The following documentation is available in the Kronolith distribution:

README:	This file
LICENSE:	Copyright and license information
doc/CHANGES:	Changes by release
doc/CREDITS:	Project developers
doc/INSTALL:	Installation instructions and notes
doc/TODO:	Development TODO list
doc/UPGRADING:	Pointers on upgrading from previous Kronolith versions

3   Installation

Instructions for installing Kronolith can be found in the file INSTALL in the doc/ directory of the Kronolith distribution.

4   Assistance

If you encounter problems with Kronolith, help is available!

The Horde Frequently Asked Questions List (FAQ), available on the Web at

http://wiki.horde.org/FAQ

Horde LLC runs a number of mailing lists, for individual applications and for issues relating to the project as a whole. Information, archives, and subscription information can be found at

http://www.horde.org/community/mail

Lastly, Horde developers, contributors and users also make occasional appearances on IRC, on the channel #horde on the Freenode Network (irc.freenode.net).

5   Licensing

For licensing and copyright information, please see the file LICENSE in the Kronolith distribution.

Thanks,

The Kronolith Team