Date & Time setting can have undesirable side-effects
The Date & Time component changes the system date/time each time a widget is changed. When making large changes this can result in dozens of system date/time changes whipsawing between past & future and creating absolute chaos with scheduled tasks. It seems like the system date/time should be set just once, after the user has indicated that the widgets have the desired value. Something like an "OK" button.
Edited by Michael R