Incorrect Date/Time, SystemServerUI not responding
Some days I look at the date/time in the menu bar and it's wrong. When I attempt to load the Date/Time preference pain, it fails. Using Activity Monitor I always find the above process "Not Responding" and as soon as I force quit SystemServerUI, the correct date/time appears.
Anyone else seeing this? Any ideas on the cause/correction?
I'm running Sierra on a 2015 iMac.
iMac with Retina 5K display, macOS Sierra (10.12)