Peter Ilieve <peter <at> aldie.co.uk> writes:
Remember that we are descriptive rather than prescriptive. I can’t speak for the Irish, but you would have a hard job trying to get GMT and BST (another ambiguous abbreviation signifying UTC+1) changed to GBT and GBST or GBDT.
I did not suggest changing GMT or changing BST as the abbreviation for British Summer Time, nor did I have any intention to suggest it. When you have one code with two meanings, it is not necessary to replace both codes to get to where every code has no more than one meaning. If Bougainville Standard Time is given a different abbreviation, BST will be left with only one meaning: UTC+1 (British Summer Time). And it makes a lot more sense to change the one that's been in use for just under 4 months rather than the one that's been in use for just under 99 years.
And, of course, change the other version of this ambiguous CST abbreviation to USST.
Same story: If we get to where CST means only UTC-6 and CDT means only UTC-5, we no longer have a problem. Besides, if we were to change C%sT to US%sT in the ten different North American countries where UTC-6 is represented in the tzdb as "CST", we would be doing exactly the same thing that Mr. Kazimirchyk would like to see undone to Belarus, the very issue that started this thread. I actually prefer the style used in North America, Europe and Africa of multiple countries using the same name for the same UTC offset rather than the style of South America and Asia of the same time offset having a different name in each country. It's neater and easier to handle, and it's easier to remember what the names stand for. For example, it's easier to remember that Central European Time is between Western European Time and Eastern European Time than it is to remember that Myanmar Time is UTC+6:30. Out of curiosity, I recently decided to figure out which of the world's 41 different UTC offsets currently has the most names. The winner (or loser?) is UTC-3, which currently has 13 different names (Amazon Summer Time, Argentina Time, Atlantic Daylight Saving Time, Brasilia Time, Chile Summer Time, Falkland Islands Summer Time, French Guiana Time, Paraguay Summer Time, Pierre-et-Miquelon Standard Time, Rothera Time, Suriname Time, Uruguay Time and Western Greenland Time). I'm not suggesting that something be done to change this fact; I'm just sharing an interesting bit of trivia. One thing I had intended to include in my previous message but forgot to is that I don't see anything wrong with ambiguous tz abbreviations that do not represent more than one UTC offset. PST is cool because Pacific Standard Time and Pitcairn Standard Time are both UTC-8, and AQTT is cool because Aqtobe Time and Aqtau Time are both UTC+5. Hank Wisniewski, Austin, Texas, U.S.A.