http://www.calgaryherald.com/news/ca...847/story.html
Calgary Herald article discussing playground zone changes. Would also allow school zones to change to playground zones meaning weekends and when school is out of session. 9pm seems like it would be mighty dumb in winter time when the sun sets super early. The 1 hr after sunset isn't too hard to follow now with the sun taking an hour to set and all. 730 seems very early though and would ruin 19th street for me every morning