Hop additions in a 90 minute boil

[yimmyyames]

Hi there, I wanted to start experimenting with a 90 minute boil but had a question about my hop additions. If I am following a recipe that calls for a standard 60 minute boil. The first addition is at 60 minutes. If I convert that to a 90 minute boil, am I adding my first hops as soon as I start to boil (90 minutes from flameout) or 30 minutes into the boil (60 minutes from flameout).

From searching other threads it appears to be the latter but I'd appreciate confirmation. I'll be brewing a American Brown Ale if that is matters at all.

Thanks

 

[funnycreature]

60 minutes means with 60 minutes left in the boil so 30 min after start