It’s worth noting that even if WF asks you for international time to be input, the CMS only know about PM/AM time to deal with in font, for the time being. There are tons of ways to build the date exactly as you want it, but only one option for time.
I’ve built a series of resources to help converting and translating date and time on Webflow. It’s all available on this page:
If by chance it can be of any help… feel free to use.