When I look at the list of activities (on the website) the date and time is shown in the upper left corner but the time does not indicate if it is AM or PM nor can I find a setting to switch between AM/PM and 24 hour display for time. It only shows the timezone when I hover it. Am I missing something here?
Good point 
We will probably switch to 24 hour format since we have a lot more non-Americans than Americans (nothing against you, I am American too :))
I will get my developer to fix this. I would take a lot longer to make it a user preference.
Well, I am non-American so I prefer the 24 hour format.
Oh great, yes I am de-Americanized metric lover so yes, 24 hours it is
Would be nice if the app showed the time as well.