One thing I noticed about the clock is that there is no way to change it to a 24 hour mode.
Viewing post in Crank & Watch: Octopus (Playdate) comments
Correct. The menu is limited to three items max (currently Game A, Game B, and Clock), so there was no available way for me to offer this as an option.
I think I have access to a variable that lets me know if the user set 12 or 24 hour on the Playdate itself, so I could in theory read this to adapt to the same setting.
I chose to stay true to the original G&W device that was using AM/PM with a 12-hour display.