"I'm free at around 7PM" [closed]

Solution 1:

There's nothing wrong with using the present indicative instead of future tense when nailing down an action to a time or speaking of things in the future as if they have already occurred. There is even a literary device known as prolepsis, which deals with exactly this.

How often have you heard someone in a movie or TV show say:

Reach for that gun and you're a dead man.

That is one example of prolepsis. Your example is another.

Solution 2:

There’s an argument that “at around” is not strictly correct, as either you’re free at 7 p.m. or around 7 p.m., but not both.

But it’s certainly widely used colloquially.