  We introduce two time: deterministic Newton time-stream t and stochastic
time-epoch $\tau$. The relation of uncertainty for time-epoch of physical
events $\Delta\tau\Delta D \geq c_1,\eqno(*)$ where $c_1=const$, is proved. The
function $D(t)= - c_1\frac{d}{dt}\ln f_\tau (t),$ characterizes {\it velocity
of disorganization} of the event-phenomena; $f_\tau (t)$ is density of
probability of time-epoch $\tau$.
  The relation (*) is verified not by means of experiment that is traditional
for physics, but with the help of the reference to datas of historical science.
