Hi Paul, The point I am making is that sunset still occurs at the time it is supposed to but check out the last light time which is extending further from when it is supposed to. Usually last light is 15-20 minutes after sunset but it is increasing now to where it is just more than an hour after the sunset time, there is still light coming up over the horizon in the south west. I have not checked the dawn lately but a couple of weeks ago it appeared to be equalizing with last light, both about the same length of extended time.
My sunset time is 6.07 pm Qld
Last light time is 6.30 pm
I am observing light until 7.07 pm in the south west corner of the horizon.