[tz] permanent DST and North American time zone names

Arthur David Olson arthurdavidolson at gmail.com
Wed Mar 16 14:57:01 UTC 2022

Hearkening back to the resolution of 3/16/2022 versus 16/3/2022 with
2022-03-16: EPT, CPT, MPT, and PPT (where the middle P stands for

An option: a middle Y for "year-round."

The option with the most fun: a middle A for "all the," yielding four
three-letter words as time zone abbreviations.


On Wed, Mar 16, 2022, 10:40 AM Paul Eggert via tz <tz at iana.org> wrote:

> On 3/15/22 23:26, Ephraim Silverberg via tz wrote:
> > Another option would be to just delete the middle letter and use
> two-letter
> > abbreviations -- e.g.  EST/EDT -> ET
> As I understand it, POSIX and Internet RFC 8536 both require at least
> three characters in time zone abbreviations. Of course the standards
> could be changed, but the corresponding software would need to be
> changed too.
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