The best approach for dashboard with forms, center or left align?

So, I'm currently trying to improve our system. But I've come across an obstacle.
Whats the best approach for this kind of situation?
Should I use it centered like this:

Centered Dashboard Form

Or Should I use it at left:

Left Dashboard Form

So, I would like to know the "WHY" should I use it in this way or another. How the user would benefit with those situations. And also, if you guys see any kind of "wrong doings" in here, please feel free to tell me. I'm kinda new into those kind of work.

Thanks in advance!

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