  We first present the salient features of the gravitational time dilation and
redshift effects in two ways; by considering the oscillation frequencies/rates
of clocks at different heights/potentials and by considering the photons
emitted by these clocks such as atoms/nuclei. We then point out to the
extension of these gravitational effects to static electricity along with two
experiments performed in the '30s with null results of the electrostatic
redshift. We show that the absence of this redshift is a consequence of the
conservation of electric charge. We discuss the electrical time dilation and
redshift effects in detail and argue that the electrostatic time dilation in an
electric field must be a fact of Nature. We then present a general relativistic
scheme that explains this effect. We also introduce an electrical equivalence
principle analogous to the gravitational one and demonstrate how to obtain the
electrostatic time dilation by this principle. We emphasize the importance of
ionic atomic clocks to measure this effect whose confirmation would support the
general relativistic scheme presented. We finally go over an attempt in the
literature to explain the impossibility of the experimental observation of the
electrostatic redshift due to its smallness by employing the Reissner -
Nordstr\"om metric in general relativity. We argue that the $Q^{\,2}$ - term in
this metric is due to the minuscule contribution of the energy of the electric
field of the central body to its gravitational field. Thus being gravitational,
this metric cannot be used to calculate the amount of the alleged electrostatic
redshift.
