04
Jun
I use KDE as my main desktop environment. Recently I was rebuilding an installation, and saw my clock was set to the 24-hour style, instead of the American style of 12-hour with AMPM. Clicking through the settings on the clock widget itself, I found no settings for getting that changed back. I always find out where, but not for a couple hours. So, to post this here, such that I’ll find it next time, you simply go into System Settings -> Regional & Language -> Time & Dates (tab) and select pH:MM:SS AMPM from the select box.
You may need to logout / login to restart the clock and make the setting take effect.