Time not showing in 12hr format g:i a

Hello,

i'm using the time fields and want them to output front end in 12hr time: g:i a as per wordpress docs
i've tried a couple variations including the time picker option but nothing works.

how can i achieve this?
i did see anotehr support post with similar question but the link provided in reply was 404 so hoping you can help with a new link or method.
im using brickbuilder if that helps