Could you paint a scenario for us where, in your opinion, it would not be the fault of the operator of 1 tonne plus of metal and plastic were it to collide with a more vulnerable road user at night?
Jeffery Ryan Clark, 27, died the night of Nov. 16 when the bicycle he was riding on Wall Street hit a car as it turned in to the driveway of a condominium complex. Clark was wearing dark clothing on a dark, rainy night. He was also not wearing a helmet and had no lights on his bicycle.
Cpl. Norm Smith, head of Nanaimo RCMP Traffic Services, said police concluded it was a terrible tragedy, and given the circumstances, there was no way for the driver to have seen Clark.
It might help if you could give us your working definitions of sunset, twilight and dusk to be going on with?
I believe sunset occurs just a few minutes before 16:00 in your neck of the woods at this time of year, so riding around at three-ish with no lights is perfectly legal. At four-ish? Not so much.
As the OP states, its not just the night thats the issue, its the dusky half light you get. Around here that can be anytime from all day if its overcast to just after 3.30 if its clear. then you have to factor in what side of the malverns you are on (Gets darker earlier on worcester side) and what type of roads i will be using, clear main roads, roads through the woods, lanes.., then the weather can change, fog and mist on the hill top roads..so many variables. The answer? Always be as prepared as i can, bright clothing and a set of lights at all times. I dont do it to be legal, i do it to be as safe as i can.
To turn a previous argument around I would rather wear high viz than get hit by a bus.