[Will88]

Since AZ doesn’t observe DST, don’t the polls close at 7 EST?

Probably later than that. It's now presently just 4:25 MST in Phoenix. And it's already 7:25 EDT.

[Irish Eyes]

It is 3 hours earlier in AZ than on the East Coast ....It is now 4:50 PM. Polls close at 7:OO PM.