If he had 1 PC, we can say that it's a good rendering speed, but I think that he runs 9 warriors PC... If only 4 of them are doing the animations rendering and let's say it takes 2 days / animation, it will be 3*2*4 = 24 animations per 6 days.
We don't have all the information, but something is obviously wrong.
If only it were as simple as you say... Each animation is 30 frames in one second, and now 60. One frame = one render. That is, you understand that 5 seconds of animations equals 300 renders. Further, the speed depends on the complexity of the scene, the number of characters, the detail of the environment, lighting, etc.
Even on 4090, a good render can take one hour of work if your conditions are high image quality. Iray in DAZ is pretty slow, although it does some beautiful magic.
So it is very difficult to estimate the remaining time, how long each animation will be processed, even for DPC. But we don’t know his conditions at all, so we’re just guessing.