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I agree. The article says there'd be some benefits to switching, but there'd also be costs (for example when I travel I don't have to do mental calculations to figure out what time to eat lunch, or when to set my alarm clock).

I think removing daylight savings is a good idea, there's no benefit at all to it, and a lot of costs.

But timezones are handy. Maybe you could simplify them a bit, but to rid of them completely is overkill.

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When you travel now you have to either adjust your clocks anyway. If you have software changing the time, you can also have software adjusting your alarms.

The difference is that your expectation of your circadian rhythm never moves. You know when you classically eat and sleep, and unless other appointments require you to disrupt that cycle it is often best to stick with what you know when traveling than disrupt those cycles for whatever span of time you are away from home.

Even if you do not, it is incredibly simple to shift your planning the number of hours according to the shift in sunrise time wherever you are, because you already have to do that with time zones anyway.

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