I had not noticed. The Nylex clock sign is my wallpaper on my home computer. Punt Rd is not in my daily geography nowadays. Hmm...

What does it signify? Has it ever been turned off before?

I noticed! I ride past it evenings on my bike. I used to enjoy finding out how frostbitten (or heat-exhausted) I should be, given the temperature.
And how late I was running, given the time. :)

I can see the Nylex clock from my bedroom window and am very dissapointed that it has been switched off for so long. Is this anything to do with the planned demolishion of the silos? The clock itself is heritage listed so can not be demolished.
Wish they would trun it back on though as now i don't know how cold/hot i am supposed to be