The validity control opens from the calendar button associated with the setting.
The example image above is from the Length of work day settings, under Worktime - Administration - Setting groups - Setting group: Desired setting group - Function: Setting group settings - Work hours - Length of work day.
Pressing the validity control marked in green in the image opens a view with information about the current length of work day, as well as possible previous lengths and their validity periods.
In the example in the image, the length of the work day on Monday is to be shortened from 1 September 2016 to 6 hours. This can be done as follows:
1. Set the end date to 8 hours on August 31, 2016 in Valid to
3. Set the value to 6 hours and set the Valid from date on September 1, 2016
4. Click Save to save the changes at the bottom of the window
The value has been valid from the beginning and it is desired that the value has a retroactive effect on the calculation OR there is no need to set an end date for the value, it is valid until further notice
Please note that the settings will no longer need to be saved again from the Save button on the main page. Saving in the change window is sufficient.
For separate instructions on defining exception settings that open in the Exceptions section, see Configure exceptions to settings.