The charge timer in the car only uses 24-hour there is no way to change it to AM/PM. The HondaLink app uses AM/PM. I modify my charge schedule all the time and I use HondaLink so that I don't have to go out to the car and set the schedule. HondaLink is a bit quirky and sometimes has trouble connecting, but for me it works well. But from reading your post in the other thread you are using a fixed schedule that won't be changing, so there is no need for you to use the HondaLink app, just as easy to set it in the car.How do I indicate AM or PM when setting the charge timer? I can set hours (1-12) and minutes (0-59) but no AM or PM indication.