Tequatl
Baruch Bay usually does it at 00:00 (midnight). However, you’ll face 2 big problems.
1: it’s an spanish server and you’ll have a hard time understanding the people there.
2: They usually jump to other servers (or overflows) before the event starts, that way they remove all the AFK players that are in the map. (And if that happens, they say name of next server in the public teamspeak, but again, you won’t understand it unless you speak spanish).
Besides baruch bay i don’t know about other servers. It’s worth a try but… i really hope you can find a better alternative.
Aens / Ellantriel / Nao To Mori / Saelyth. Commander
Guias de Raids en espaƱol / Spanish raiding guides
I know there are several servers that do him a few times per week. Mostly this is organised by special made guilds and they often get a succesfull attempt (kill the dragon).
There is one server that is doing it more often and that is desolation. I havent checked recently (Tequatls got competition from the jungle wurm) but before the last update Desolation was killing him from morning to late night every time he spawns. It did fails sometimes, but mostly they make it. The only issue is that this is common info. So getting there 5 minutes before he spawns will land you straight to overflow. If you want to guest there, from my experience, you need to be there atleast 90 minutes ahead of time.
Also, these are pro’s. so tell in mapchat you never done it and ask for instructions. do not be shy. Join a zerg (so do not go defend or man the turrets) at the first few times and follow directions.
Arise, opressed of Tyria!
From my knowledge several servers(in EU) have started forming their own tequatl guilds like TxS and TTS, you should ask around LA if anyone knows about one of those in your server.
You can also join TxS when they open again in a few days(kicking all the players that no longer play with them).
Or you can do the extreme and decide to start your own tequatl killing guild.
We do it every day on far shiverpeaks. Try to join the FTF (Fsp Tequatl Fighters) guild.