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From:	"Norbert Schulze" <Norbert DOT Schulze AT rhein-neckar DOT de>
To:	<cygwin-developers AT sourceware DOT cygnus DOT com>
Subject:	faulty automatic TZ-string generation
Date:	Sat, 25 Sep 1999 21:31:26 +0200
Message-ID:	<000001bf078c$9512b3f0$3a5ac5c1@guinan>
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Hello,

when will my patch named 'some contributions' send at
Di 31.08.1999 22:03 be checked in?

Without the patch the automatic TZ-string generation
computes a faulty TZ-string in 36 timezones out of 62
possible in NT4.

Tzparse correctly aborts because in these 5 timezones negative
minutes are generated:

[GMT+03:30] Teheran
[GMT+04:30] Kabul
[GMT+05:30] Bombay, Calcutta, Madras, News Delhi
[GMT+09:30] Adelaide
[GMT+09:30] Darwin

And these 31 timezones have no daylight saving time but tzsetwall
generates unnecessary and faulty transition-dates:

[GMT-12:00] Eniwetok, Kwajalein
[GMT-11:00] Midway Island, Samoa
[GMT-10:00] Hawaii
[GMT-07:00] Arizona
[GMT-06:00] Mexico City, Tegucigalpa
[GMT-06:00] Saskatchewa
[GMT-05:00] Bogota, Lima, Quito
[GMT-05:00] Indiana (East)
[GMT-04:00] Caracas, La Paz
[GMT-03:00] Buenos Aires, Georgetown
[GMT]       Casablanca, Monrovia
[GMT+02:00] Harare, Pretoria
[GMT+02:00] Israel
[GMT+03:00] Baghdad, Kuwait, Riyadh
[GMT+03:00] Nairobi
[GMT+04:00] Abu Dhabi, Muscat
[GMT+04:00] Baku, Tbilisi
[GMT+05:00] Islambad, Karachi, Tashkent
[GMT+06:00] Almaty, Dhaka
[GMT+06:00] Colombo
[GMT+07:00] Banghok, Hanoi, Jakarta
[GMT+08:00] Beijing, Chongqing, Hong Kong, Urumqi
[GMT+08:00] Perth
[GMT+08:00] Singapore
[GMT+08:00] Taipei
[GMT+09:00] Osaka, Sapporo, Tokyo
[GMT+09:00] Seoul
[GMT+10:00] Brisbane
[GMT+10:00] Guam, Port Moresby
[GMT+11:00] Magadan,Solomom Is., New Caledonia
[GMT+12:00] Fiji,Kamchatka, Marshall Is.

Regards,
   Norbert

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