  An allowed E1-M1 excitation scheme creates optical access to the ${^1S_0}
\rightarrow {^3P_0}$ clock transition in group II type atoms. This method does
not require the hyperfine mixing or application of an external magnetic field
of other optical clock systems. The advantages of this technique include a
Doppler-free excitation scheme and increased portability with the use of vapor
cells. We will discuss technical mechanisms of a monochromatic excitation
scheme for a hot E1-M1 clock and briefly discuss a bichromatic scheme to
eliminate light shifts. We determine the optimal experimental parameters for
Hg, Yb, Ra, Sr, Ba, Ca, Mg, and Be and calculate that neutral Hg has ideal
properties for a hot, portable frequency standard.
