# Calendar Control

> Symcon documentation · English · generated on 2026-09-26  
> Index: https://www.symcon.de/en/llms.txt

Source: https://www.symcon.de/en/service/documentation/module-reference/core-instances/calendar-control/

_Requires Symcon >= 4.0_

### Description

The “Calendar Control” module offers the possibility to define periods in which one is expecting to be present or absent.

### Integration in IP-Symcon

![configuration page](https://www.symcon.de/media/pages/service/dokumentation/modulreferenz/kern-instanzen/calendar-control/ea176712b0-1790424938/calendarcontrol-config.png)

In the “Calendar” instance (“Logical tree view” -> “Core instances”), new time periods can be added via the configuration page.
During these periods, the appropriate variable is switched to “True”. If both variables are set to false, no time period is defined for the current time.

![variable view](https://www.symcon.de/media/pages/service/dokumentation/modulreferenz/kern-instanzen/calendar-control/aa090f2f0d-1790424938/calendarcontrol-objektbaum.png)

### Examples
__Planned presence__
A family visit is recorded as a planned presence. At times when normally no one is in the home, the heating is automatically reduced to save energy. By taking into account the variable “planned presence”, this can be prevented without changing or manually switching off established scripts or weekly schedules.

__Planned absence__
The family vacation to the Baltic Sea is recorded as a planned absence. Due to the planned absence, an energy-saving automation system can be permanently activated for the period of time that would normally only be active at certain times in everyday life.