Normal arena takes 2 hrs to complete
Vet, you have limited rez's so time is not normally the issues, but the longest has been 3 hrs.
If you don't have 3 hrs to spare, don't go in. If it is taking longer then that, you need a better group (or the group needs to replace you)
In normal mode, you’ll be able to grab a group and make a decent dent in the arena. You won’t be able to finish all ten of the arenas without coordination and skill, and each new arena will still be more difficult than the last, but with the right group and good communication, you’ll be able to progress and earn some nice rewards.
With a well-organized group, you’ll be able to see it through to the end and earn an achievement, title, and some fine loot. You receive rewards after every arena, so even if you don’t get to the very end, you’ll still walk away with something.
Veteran Mode is a different beast entirely.
We cranked up the difficulty to sadistic levels, and you’ll need strategy, skill, and tight execution to complete it. We adopted the Soul Reservoir feature from Trials, so your group will have limited resurrections throughout the course of the ten arenas, and (also like Trials) Veteran Dragonstar Arena will feature leaderboards. Some particularly excellent loot will be available, too—we’re introducing a new set of weapons that provide bonuses to specific abilities for those who can manage to get to the end.
If you don't have 3 hrs to spare, don't go in. If it is taking longer then that, you need a better group (or the group needs to replace you)