Time zone change road sign

Here's something you don't see every day. This is an international time zone change but with a slight difference... The town for which this sign is for falls within a state that observes a different time zone. To explain Broken Hill is in New South Wales which is GMT +10 but it observes South Australia time which is GMT +9.5

We passed this sign a couple of times and had to keep changing our watch!
The shot was taken on the move... This explains the blur in the image.