World clock face black or white
The world clock face turns black or white at some time each day. I have multiple time zones set so I see them at different states. Previous posts have said the change is from night to day and back. Yet as I write this I have 9:30 am black (EST), 7:30 am black (MST), 6:30 am black (PST) and 3:30 pm white (Paris). Clearly the designation is not night/day. Other posters have said it’s not am/pm, but perhaps it is. Anyone know?