In Game Event timer/scheduler
If You are talking about world bossess and those kind of events:
https://www.guildwars2.com/en/news/the-megaserver-system-world-bosses-and-events/
Look this way. There is a table that shows You exact hours that these events begin on different regions.
I don’t know why they haven’t implemented it. But the “feel” of the game is kind of exploration, you roam the world and stumble upon quests/loot/events…
So making an in-game event finder would be great, but maybe take away from the “feel” they’re going for…
I don’t know, just “thinking out loud”…
If nothing else, install Overwolf. It has a lot of widgets for Guild Wars 2, one of which is the event timer.
So you basically can get that in game, but not directly implemented the way you want. You still need to use and external app, but Overwolf integrates into the game, so it’s like it’s implemented anyway… :P
Try it out if you haven’t already.
I use Dulfy’s.
RIP City of Heroes