There are several options to configure and use ClockToday.
In all cases ClockToday offers a clear overview of the calendar of the current day.
a) You can set up ClockToday in combination with your local iCal calendar, where ClockToday reads out the active calendar day and displays it clearly on that particular mac.
b) Another possibility is, for example, that you set up an iCal calendar on your own device and share this iCal calendar with the other mac user.
In this case you can remotely manage the agenda of that particular person. A typical example of a caregiver, with respect to the patient with Alzheimer's symptoms.
You need to give ClockToday permission to access iCal® calendar.
If you refused (pushed: "Don't Allow" button) you get the message below:
You can still give access, adding ClockToday to the "Calendars" exception list in the "Security & Privacy" panel of the "System Preferences".
This is common practice in macOS security policy.
2.1 Setup via preferences panel
you can set a few very specific settings to increase the ease of use:
2.2 Setup an iCal calendar and share with other mac user:
2.3 After setup and launch of ClockToday:
You can have 2 situations:
ClockToday is connected to iCal, but there are no events found on that particular day.
ClockToday has found events and clearly lists them in chronological order.
As you saw in the preference pane above, you can hide past events if you want.