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by gioazzi 554 days ago
There's an interesting twist to this problem when one is playing with DST! Consider for instance a recurring event that happens every day at 02:30, let's say in Switzerland.

On the day DST starts, that event cannot exist, at 01:59 clocks will jump forward to 03:00. Vice versa, on the day DST ends, any time between 02:00 and 02:59 will happen twice.

2 comments

That's why DST is an abomination which must be abolished. Just say work/school starts at 7am instead of 8am during a part of the year. Simple.
The the school, and every employer, and every government agency, and the stores, and the public transportation, and so on and so forth.... will have to all agree to change their hours. On the same day!

You might not like DST, but leaving it in the hands of every entity to interpret is a far worse situation.

> will have to all agree to change their hours. On the same day!

Imagine if there was a powerful body representing the population that could decree a change like this!

Instead, we only have a body powerful enough to decree that all of those people change their clocks on the same day.

Anyway, the best part of changing the hours instead of the clock is that not everybody needs to do it on the same day.

> That's why DST is an abomination which must be abolished.

Don't scapegoat it too much: The underlying problem of time-shifts will still exist, and that edge-case still needs to be handled by other means.

DST just makes shifts more frequent and obvious. One might even say that it draws an important amount of attention to a broader class of problems.

That's a much less simple solution at the societal level, which is why it probably won't ever happen.
Time zones are an abomination. It’s UTC or bust /s (or not?)
Even UTC has leap-seconds. You could go a step further to TAI which is pretty stable unless some phenomenon starts changing the rate at which Cesium atoms vibrate.
How many real humans would have a recurring event at 02:30 on Sunday?
Some people work night shifts
And the people that do work night shifts, have their shifts either shortened or extended by an hour as well (at least in Germany, from what I’m aware)
Before companies went global 24/7, this was really a rare problem.

These days, you could have a global company where some emergency occurs and you have to call a meeting at sometime on Saturday wrt your location timezone, but one of the other locations is several hours ahead of your timezone such that the meeting occurs during/around the transition period for their location's timezone.

So, not common at all. But it may happen. That's why they choose the transition times to occur when most of the LOCAL population DOES NOT schedule meetings.

I don't think there were any Saturday/Sunday virtual meetings when this timezone stuff was created... Simpler times...