The events machinery shows the next three events / appointments defined in the calendar, with date, start and end time and how many minutes / hours / days are left for the event in question. See the illustration below.
Notes:
After defining an event in the calendar, wait a few seconds for the machinery to update itself and show the defined event;
The global variable that must be changed to switch between minutes, hours and days is "Tempo". Thus, we have MMMM (minutes), HHHH (hours) and DDDD (days). Change it and save it via KLWP if you want to change the default, which is "Hours".