[Dilbert San Diego]

If we had year round daylight time, the sun wouldn’t rise till after 8 am in many places in mid winter. So there’s that.

Arizona doesn’t observe daylight time. I’ve heard that with the desert heat in much of the state, they don’t want an extra hour of daylight in the evening.

[HartleyMBaldwin]

I live in Arizona, and you’re exactly right. By evening in the summer, you just want the sun to go away.

Not all of Arizona stays on standard time. The Navajo Nation observes DST, but the Hopi Nation does not.

[WWG1WWA]

Az time is wonderful. Lived there for a decade. It was the only time in my life that I didn’t experience sleep issues.

[Verginius Rufus]

Arizona is so far west of the central meridian of the Mountain Time Zone that it almost has daylight saving time already with standard time.

If you compare the present-day time zones to the original time zones (soon after Daylight Saving Time became common) you will see a tendency for the borders to shift to the west--some areas which were originally in the Central Time Zone are now in the Eastern Time Zone.