Re: [tz] [PATCH] Change abbreviation of Sri Lanka standard time to SLST

Pavel V. Rochnyack wrote:

For example, i found (in 'europe'): AMT - it marked as 'invented'

AMT is a more-difficult case, since it is not an integer number of minutes (or even seconds!) from UT so the numeric offset is problematic. We are working on the easier cases first. Most of the other abbreviations you list are on my to-do list, and should be replaced by numeric abbreviations in due course. The North American abbreviations are well-attested enough, which isn't surprising as English is the main language here. If we were designing tzdata from scratch I would indeed favor omitting all abbreviations, as CLDR is a more-appropriate project for them. We don't have that luxury, though.