Do we have a list of Despawn Time of Nemesis bosses?

Question

We have already information about how many days are necessary to spawn a nemesis boss, we also have some information about the range they can be lured, but I didn't found a list of "Despawn Time". Such list would be useful because today one of my friends found the Big Bad One and he disappeared in 6 minutes, making us lose it. Knowing their time before disappearing would make us know how much time we need to check more often.

Answer 1

It is difficult to have a reliable list, as to do so it would be necessary to camp the locations where the bosses spawn, wait for them to spawn on the screen to know the exact time they spawned, and hope that no one appears and kills them before they despawn. It's a lot of work for no reward, you know?

Most bosses usually despawn after 1 hour. PoI bosses, vampire lord bosses and bosses with reward container usually stay for a few hours (4h~, probably).

Varying spawn bosses probably don't despawn, or at least take longer than 1 hour. I know this, because I've seen a Mahatheb last more than 1 hour and a Burster too.

As for the Bank Robbery bosses, I have no idea. I even asked a question about this here.

My advice is: check whenever possible. If you have the time to check at least every 30-40 minutes, do so.

Comments

Yeah I agree.. however people may already have some experience on that matter.. we together could make such a list by having those unfortunate moments where we lose the boss.. saying that:

From our experience we already know that The Big Bad One despawn after 1h because my friend always checks every 1 hour. Maybe all bosses who spawn again in the time frame of 5-8 days has the same time, and then maybe bosses who spawn in 15 days has 2 hours or more? It would be a very good tutorial for people beginning on Boss hunting since it is very difficult.. now we will check the Big Bad One each 30 minutes.. but without that information we could still be looking every 1h and lose it again.. now atleast we have a proper plan to not lose it anymore.

Answer 2

I'm answering my own question with some information because no one answered yet with specific bosses, but would be good if someone uses my own information to make a bigger, more detailed list.

So there goes the list I've found out by checking bosses myself (I check bosses every 40 minutes, so I have 20 minutes to call my friends and to get there with my main):

Bosses that despawns in less than 1h:
Bane Lord: Despawns in less than 30 minutes after raid?
Battlemaster Zunzu: Despawns in 30 minutes
Dreadmaw: Despawns in 30 minutes.
Flamecaller Zazrak: Despawns in 30 minutes.
Fleabringer: Despawns in 30 minutes.
Hatebreeder: Despawns in 30 minutes.
Voice of Ruin: Despawns in 30 minutes.
Yakchal: Despawns in 25 minutes after being awakened?

Bosses that despawns in 1 hour:
Barbaria - Despawns in 1 hour.
Big Boss Trolliver - Despawns in 1 hour.
Captain Jones - Despawns in 1 hour.
Dharalion - Despawns in 1 hour or more?
Foreman Kneebiter: Despawns in 1 hour.
General Murius - Despawns in 1 hour or more?
Grandfather Tridian: Despawns in 1 hour.
Gravelord Oshuran: Despawns in 1 hour?
Groam: Despawns in 1 hour or more?
Hairman the Huge: Despawns in 1 hour.
High Templar Cobrass: Despawns in 1 hour.
Man in the Cave: Despawns in 1 hour or more?
Rotworm Queen: Despawns in 1 hour or more?
Rukor Zad: Despawns in 1 hour.
Smuggler Baron Silvertoe: Despawns in 1 hour.
The Big Bad One: Despawns in 1 hour.
The Evil Eye: Despawns in 1 hour.
The Frog Prince: Despawns in 1 hour?
The Old Whopper: Despawns in 1 hour.
Tzumrah the Dazzler: Despawns in 1 hour or more?
Warlord Ruzad: Despawns in 1 hour.
Xenia: Despawns in 1 hour.
Yaga the Crone: Despawns in 1 hour.
Zarabustor: Despawns in 1 hour.

Yeti (bestiary): Despawns in 1 hour??

Bosses with 4 hours or more:

Grorlam?
Hirintror?

Vampire Lords:
Arachir the Ancient One - Despawns in 4h or more.
Diblis the Fair - Despawns in 4h or more.
Sir Valorcrest - Despawns in 4h or more.
Zevelon Duskbringer - Despawns in 4h or more.

Reward Chest Bosses:
Furyosa - Despawns in 4h or more.
Ocyakao - Despawns in 4h or more.
Shlorg - Despawns in 4h or more.
The Welter - Despawns in 4h or more.
Tyrn - Despawns in 4h or more.
White Pale - Despawns in 4h or more.
Zushuka - Despawns in 4h or more.
??

PoI Bosses:
Countess Sorrow: Despawns in 4h or more?
Dracola: Despawns in 4h or more?
Massacre: Despawns in 4h or more?
Mr. Punish: Despawns in 4h or more?
The Handmaiden: Despawns in 4h or more?
The Imperor: Despawns in 4h or more?
The Plasmother: Despawns in 4h or more?

Bosses with 12 hours or more:

Bank Robbery MWC??

Omrafir - Despawns in 12h or until server save.
??

Comments

As for the Zao bosses, I'm not sure if they really disappear after 30 min. The problem there is that the bosses don't always spawn with the other creatures that accompany them. I've already reported this, but they said that's how it is. The boss may or may not spawn.