Try this (Kysu's version):
date -d "16:00 410 minutes" +'%H:%M'
or this:
date -d "16:00 today + 410 minutes" +'%H:%M'
But do not use this:
date -d "16:00 + 410 minutes" +'%H:%M' # BAD!
Strange things happen if you omit the word today
but keep the +
. (I think the + 410
is being parsed as a timezone modifier, and then the minutes
is interpreted as "add one minute".)