KAlarm

KAlarm is a personal alarm scheduler which displays messages, executes commands, plays sounds or sends emails, at scheduled times. You can set up recurring alarms, or restrict alarms to working hours. Among its options, it allows you to choose the message font and color, whether to display an advance reminder, whether to speak the message or play a sound when it is displayed, whether to cancel the alarm if it can't be triggered on time (e.g. if you are logged out when it triggers).

You can optionally use multiple alarm calendars, or share calendars. This allows, for example, sharing alarm calendars between laptops and desktop computers.

As well as using the graphical interface to configure alarms, you can use the command line, and there is a DCOP interface for other applications.

KAlarm is part of the official KDE kdepim package. The KAlarm version for KDE 4 downloadable from here is an update to the current KDE 4 release. The KDE 3 package is functionally the same, and offers considerable improvements compared to the version supplied with KDE 3.5.10.

Version 2.4.0: There is a new audio alarm option, which does not display an alarm window. You can configure the duration of alarms copied to KOrganizer. The main menu organisation is improved. Alarms are not overlaid on full screen windows on dual head systems. The system time zone is now recognized if its name is not in the form 'continent/city'. Polish and Latvian translations are improved. There are various other minor improvements and bug fixes.

Version 2.4.1 fixes a serious KDE 4 bug where recurring date-only alarms trigger repeatedly at high frequency.