[tz] Problem with historical Asia/Manila?
Brian.Inglis at SystematicSw.ab.ca
Fri Mar 3 00:27:09 UTC 2017
On 2017-03-02 02:34, Paul Goyette wrote:
> On Thu, 2 Mar 2017, Paul Eggert wrote:
>> Paul Goyette wrote:
>>> According to the asia file, the Philippines jumped 24 hours on May 11, 1899,
>>> from -15:56:00 to +8:04:00 (they moved the international date line?)
>>> # Zone NAME GMTOFF RULES FORMAT [UNTIL]
>>> Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31
>>> 8:04:00 - LMT 1899 May 11
>>> 8:00 Phil +08/+09 1942 May
>> Yes, they moved the date line. But this occurred in 1844, not in
>> 1899. I think you misread the UNTIL column. zdump -i reports:
>> - - -1556 LMT
>> 1845-01-01 00 +0804 LMT
>> 1899-05-10 23:56 +08
>> so the big change occurred in 1844, and the four-minute change
>> occurred in 1899, which is what the table says.
> Yes, as expected, I misinterpreted the data! Thanks for clarifying!
> (FWIW, zdump indeed shows the big jump going from 1844-12-30 23:59:59
> to 1845-01-01 00:00:00 completely skipping over Dec. 31st!)
Background - it was considered to be part of New Spain with Mexico:
over 14Mm Manila-Acapulco compared to nearly 9Mm Veracruz-Seville.
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
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