If you're announcing an online event, please don't use "12 AM" or "12 PM". I have no idea what those times mean in normal language. Which one is noon, which one is midnight? Both are *on* the meridian, FFS.
Mastodon is the best way to keep up with what's happening.
Follow anyone across the fediverse and see it all in chronological order. No algorithms, ads, or clickbait in sight.