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As an engineer I always use a library, or set up systems on Arizona time so I don't have to deal with it.

But I often had to work with systems/software made by other people who made a lot of assumptions about dates.

Why Arizona time? Isn’t it easier to use UTC?

I live and work in California, so it's way easier in my head to subtract one hour during the few winter months we're on standard time, and then not have to do any math from March to October.

UTC always requires a bunch of mental gymnastics to subtract 7 or 8.

It’s possible for Arizona to start using DST in the future. Indiana used to not observe DST until 10 or 15 years ago.

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