Wiping the world clean : Does time exist without humans?

There is no question that we experience what we call time. There is a precision with which we can measure the progression of events over time that is phenomenally accurate. Things age and particles decay over “time” and it is consistent. However, physical laws that use time as a reference work equally well for time reversal - going backward – a particle hitting another particle, generating other particles and emitting photons will work just as well running backward according to physics. We just have never experienced time reversal and this disconnect with the laws of physics seems to be a mystery. This disconnect is used by many to express the opinion that time exists. However the fact remains that equations of space and time break down at certain points and time falls out of some of them as an unnecessary factor.
Beyond the question of whether or not time exists without the mind is does time exist at all? Or is that the same question? Is existence of anything comprehensible and extractable without the recognition and corroboration of the human understanding/ conceptual mind?
With the understanding that the past no longer exists and the future is only potential and these two nothings are separated by an ongoing ever growing present that moves so quickly that humans cannot make sense of it, then this alone allows one to logically conclude that time does not exist. Past equals nothing; future equals nothing; present equals nothing. Time is sections of nothing all separated by nothingness.
With the question of whether or not time is real or arbitrary still unsure to me I ask whether time flows or rather do we flow through it?