Yeah, it's to complicated for me. All those servers, providers, adresses... And I feel like only older linux users, working in IT use it. I'm not really tech-savvy, so I'll stick with Facebool Messenger for now.
Lemmy frontends often round it to for example "4h ago", but if you really want to know, you can use API to get exact date/time. Here is the docs link for JavaScript client: https://join-lemmy.org/api/