What do you mean with this?
You mean convert milliseconds into a Date and then format it a certain way? If so, you can do that:
date('shorttime', now + (90*60000) )
FYI: Same as :
date('shorttime', Date.now() + (90*60000) )
FYI: in BLL expressions, Date.now() is available as now. Just to make it more readable and have for each execution a fix value of now.
