  The problem of time in the quantization of gravity arises from the fact that
time in Schroedinger's equation is a parameter. This sets time apart from the
spatial coordinates, represented by operators in quantum mechanics (QM). Thus
"time" in QM and "time" in General Relativity (GR) are seen as mutually
incompatible notions. The introduction of a dy- namical time operator in
relativistic quantum mechanics (RQM), that in the Heisenberg representation is
also a function of the parameter t (iden- tifed as the laboratory time),
prompts to examine whether it can help to solve the disfunction referred to
above. In particular, its application to the conditional interpretation of the
canonical quantization approach toquantum gravity is developed. 1
