Here in Queensland's sub tropics on average (we're a big State so it varies) in summer, dawn is about 5 and sunset about 7, with the opposite in Winter). Further south there is a much greater variety and in Tasmania they have British type daylight hours.
The southern states have had daylight saving in the summer but this has always been rejected in Queensland as it would mean sunsets about 8 pm, which would be very strange for us!

It is still common for older Queenslanders to get up at 4.30 and retire at 9.00. Even 20 years ago TV here used to finish at 10 o'clock with the national anthem!

Now there's a lot more nocturnal activity, and I don't think any research has been done on whether this has affected people at all. We even have late night news on TV, and it's 24 hours programming. There's been a huge rise in asthma and Attention Deficit Disorder in kids, but who knows - diet, chemicals, ...

Michael
Australia