[tz] [PROPOSED] Use "PST/PDT" for Philippine time
eggert at cs.ucla.edu
Sun Jun 24 22:52:49 UTC 2018
Michael H Deckers wrote:
> My second point was about the abbreviation "PDT", as proposed
> for Manila summer time (which you have called "invented"),
> not the abbreviation "PST" (which you have not called
> "invented" in your proposal).
Ah, sorry, I misunderstood. With "PDT" I was attempting to follow this guideline
> Use a consistent style in a tz region's history.
> For example, if history tends to use numeric
> abbreviations and a particular entry could go either way, use a
> numeric abbreviation.
Since most Philippine history used an alphabetic abbreviation, I thought it
better to do so with daylight-saving time too. This is consistent with Hong
Kong, Taiwan and Korea, all of which have "JST" for time during Japanese
occupation because they use alphabetic abbreviations now, and it is in contrast
to other locations that use "+09" for timestamps under Japanese occupation.
We have competing guidelines here: "be consistent" and "don't invent
abbreviations", and it's a judgment call as to which is more important.
PS. Many of those "+09"s are sheer guesswork by Shanks, but that's a different
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