The law governed behavior of all phenomena when studied closely enough is evidence of their source outside of time, in other words their conformity to mathematics or the law of sufficient reason is their pedigree in the timeless. However, if you want to continue the no-self line you can just switch it over to 'nothing outside of time'. For example, it is all vast plethora of hyper-microscopic events linked in a vast network and counted off in an absolute time, and by which all we come to know are junior layers of emergent and computable phenomena built on this then you could have the law governed nature of all recognisable phenomena without any corresponding timeless ideality. Downward causation, such as it appears to stabilise what emerges is then a artifact of the computable observer, itself an emergent. Some such final form of Buddhist physics can't be ruled out but the intuition is that its concomitant phenomenalist (or qualia-based) account of consciousness needs to be end-stopped by timelessness.