  Space-time singularities, viz. Big bang, Big crunch and black holes have been
shown to follow from the singularity theorems of General relativity. Whether
the entropy at such infinite proper-time objects can be other than zero has
also been a longstanding subject of research. Currently the property most
commonly chosen to calculate their entropy is a multiple of the surface area of
the event horizon and usually gives non-zero entropy values. Though popular,
this choice still leaves some substantial questions unanswered hence the
motivation for alternative methods for entropy derivation. Here, we use a
different property, the proper-time at singularities based on the General
relativity predicted behavior of clocks, to derive their entropy. We find,
firstly within statistical and thermodynamic principles, secondly when this
property is taken into account in the Bekenstein-Hawking formula and thirdly
illustrating with a natural analogue, that the entropy of black holes and all
other gravitational singularities cannot be other than zero as had been earlier
classically speculated.
