How long does burnout last?

[ElemtalRZ]

http://www.waringmcmarrin.com/?page_id=43

- The Burnout Series has had the negative HP component reduced
(improvement) and the stat buff increased (improvement). Because of
this, the spells are no longer permanent. They now have a 15 minute
duration. Burnout III has also had its casting cost reduced.


I hope its lasting 15 minutes on here.