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 🙂