Some system-wide settings are hidden away in the preferences of bundled apps. Here’s a list of where to look for those and others which aren’t easy to find.
calendar
It’s a good story that the first month of the year is named January after the two-faced god of transitions, Janus. It’s a shame that isn’t exactly true.
Want to know when the US is on holiday so you don’t try contacting a colleague there on the wrong day? Here’s how to show many different regional calendars at once.
Early May public holiday isn’t on 4 May, but 8 May. Not all calendar services are correct.
Just when did the App Store install that update? A quick look at how to get date calculation wrong, and why you should only put Marzipan on a cake that’s been properly baked.
What can you do when Notes, Contacts, Calendars or Reminders stop syncing properly via iCloud? Where to look?
When Sierra’s automatic backups stop or become irregular, other functions fail too. Here are some important and more obvious ones. Is this fixed in High Sierra, and does it affect iPhones too?
How to get the best out of the Privacy tab in the Security & Privacy pane, and why Apple’s apps don’t bother to ask.
Calendars, Mathematica, and the Mac: a curious but productive union.
The Eclectic Light Company 