Yup, definitely some kind of hummingbird hawkmoth, a diurnal moth species that, at a first glance, resembles a hummingbird. We have them here in Europe and they're the closest we have to hummingbirds.
Some people even mistake them for hummingbirds.
They're harmless and pretty nice to watch. It used to be a constant visitor at my mom's place when I still lived there and when we had petunias on our terrace. I've moved to a different location now and I've noticed it visiting my lantanas.