This is can be done from the JavaScript file on 2 lines 34 & 230

includes\assets\js\sngine\user.js

To change the display of the time itself on the event page

Also can be done from this template on 2 lines too

content\themes\default\templates\event.tpl

You can change the date_format in the template file to whatever you want

Check this for this date_format (Only for this template not the JavaScript file)

https://www.smarty.net/docsv2/en/language.modifier.date.format.tpl

That’s it 🙂