30 km/hr School zone signs are in the shape of a house and are 30 km/hr between 8 am and 5 pm on school days unless otherwise posted. These are not in effect during summer holidays, winter break, spring break, etc., unless it is accompanied by an obvious “Summer school” sign attached.
Playground zone signs are in the shape of a diamond and are in effect dawn till dusk, every day, 365 days per year:
Signs without Speed Tabs
If you see the playground or school sign by itself (without the 30 km tab) then the speed limit is 50 km/hr unless otherwise posted (Or whatever the speed was on the road you were on before you saw the sign) In other words, if it doesn’t say to go 30km/hr, then you don’t have to go 30 km/hr *although you could always decide to slow down if you see a good reason*
Where does it end?
If you want to figure out where the zone ends, then look for the back of the sign (particular shape) on the opposite side of the road for the traffic facing you.
For more information: Back to School 2013 – DriveSmartBC