sm-Fifteen commented on issue #36558:
URL: https://github.com/apache/arrow/issues/36558#issuecomment-1799403344

   @MarcoGorelli: What would be the difference between setting a column to have 
`tz='+02:00'` compared to the completely valid `tz='Etc/GMT+2'` in this 
context? Both would have the same effect, it's just that IANA doesn't have 
zones for sub-hour precision offsets in the few cases where that's needed. I 
get that it's preferable that users know the reference timezone they're working 
with for things like DST policy reasons, and that the internal representation 
will be UTC regardless of what the TZ specifier is, but restricting it like 
this (for admittedly fair "footgun" reasons) seems like the wrong solution, 
here.


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