How to change lower case am/pm on the menu bar to uppercase?
Solution 1:
Since my system is german, I'm not 100% sure, but try this:
- go to 'Language & Region' in the System Preferences
- open 'Advanced Options'
- go to tab 'Time' and see if you can customize the way it's displayed
Solution 2:
Go into System Preferences -> Language & region, click on the button labeled "Advanced…" in the lower right, select the tab labeled "Times" and and then enter AM / PM as the abbreviations for Before / After noon in the lower left text fields.