Most commonly used to denote GMT - Greenwich Mean Time. It is also used to denote the letter "Z" in the alphabet when calling out tail numbers on airplanes.
Hopefully!
26th letter of the alphabet - eh?
…or that!
So…Let's examine the locations of the obelisks in the western world:
Rome
City of London
Washington DC
Rome controls almost all western churches - Catholic and Protestant. Combined with curriculums forced in schools, they form peoples' belief systems.
City of London has been the seat of the Rothschild central banking. Nothing else to be said about who controls the money and why.
Washington D.C. has been the enforcer for the formation of geopolitical ideals (Democracy) where the illusion of choice has been weaponized to install their puppets, and to install a central monetary system - world control.
Rome is burning
The bank is failing
D.C. is empty
Their symbolisms (Obelisks will fall down) will be their downfall.
The NWO is failing on all fronts.
AKA Babylon. A city from which we must come out.