Normally it is. There's some... unusual circumstances going on, at the moment. According to the Jormun here, the sun appears to be... dying?

[Not something she's ever heard of before, but then again it hadn't exactly been common knowledge that Haedalyn's lesser moon, Dalamund, was actually an ancient Allagan prison for an elder primal until the whole thing had come crashing down on the Plains of Cartenau.]

Though if what they say is true, it will be rising from the ashes like the proverbial phoenix before long.