State tax filing

Yes, I am living in Florida.   My llc is a single member LLC.  So, if the company paid the llc, then I would still have to pay tax on the payments paid to the llc based on the days I worked in Virginia, is that correct?  Just wanting to make sure I had a clear understanding.  Getting nit picky, what constitutes a day I work in Virginia?  If I put in a full eight hours on the ground in Virginia on a given day, that would count.  But, what if I arrive on an evening flight, and check email after I land?  If I leave Virginia on a morning flight and only check email before I leave, do I need to count that day?  What about mid-day arrivals and departures?  Do those count as half days?  Thank you so much for your help!