Comment by teo_zero

I think we agree without understanding each other.

It must be possible to sort all system events in an "absolute time line". To do so, the system must know in every moment at what point of this "absolute time line" we are, so that it can stamp the event with such absolute time marker.

Now, we can make it coincide with any known TZ, but once set, we must not change it. I set it to UTC; you might prefer your home TZ, if you have a place you call "home". But then don't change it when you travel or when switching DST on and off!

Of course you can still change the TZ of the time that's displayed to you (so that it's synchronized with the local church's bells, for example, which is convenient and might avoid you a lot of misunderstanding with your local friends), but not the TZ the OS uses for itself.

I find that any choice of home TZ would be arbitrary, so UTC is the best choice.