This is actually a bit of a misnomer. Saskatchewan calls their time zone "Central Standard Time", because they do align their clocks year-round with UTC-6, the same as Central Standard does. However, if you look at a time zone map from before they dropped the clock-switching, they were in Mountain Time, and Mountain Daylight Time is also UTC-6. So although they call it "Standard", when Saskatchewan dropped the clock changes, they really stayed on permanent daylight time.
I actually almost said Central Standard Time but had somehow ended up leaving it out. But this is why all this time zone nonsense ends up being so complicated. Funny thing is, when I asked Google, it couldn't even agree with itself.

