That is not a distinction we are sensibly able to make.
What happens in the future is determined by what happens now. The future is an extension of now.
To create the future we want involves action now. In that sense, now is all we have so nothing else can be more important, except that our 'now' includes our aspirations for the future.
In a future 'now' our aspirations may be different. That's OK, we all grow and change as a result of our experiences but our current 'now' (whenever it occurs) is all we have.
Actually, that is not true because we also have our past and what we do now depends on the outcomes of what we have done in the past. We project into the future based on our past life experiences so you could argue that what matters most is the past.
Here's another thought, 'now' never really exists.It is transient - gone in an instant. By the time we are able to be aware of it, it has happened and become 'then'.
For all practical purposes, there has to be compromise between 'now' and 'future'. The future we want requires action in the 'now' but we don't want to squander all our 'now' chasing the dream. At some point we need to live the dream, even if we have bigger dreams to come.