Born and raised in France where we use 24-hour clocks, the AM/PM time is something I had to adapt to when I moved to the States. It's not complicated to figure out, but it's easy to accidentally take one for the other. A new tweak called PM, really? wants to make sure you never accidentally set an alarm for the evening (PM), when clearly you wanted to be waken up in the morning (AM).
This tweak will make sure you never accidentally set an alarm for the evening